/** * @file * * @brief Motorola M68K Queued Serial Module * * The QSM contains two serial interfaces: (a) the queued serial * peripheral interface (QSPI) and the serial communication interface * (SCI). The QSPI provides peripheral expansion and/or interprocessor * communication through a full-duplex, synchronous, three-wire bus. A * self contained RAM queue permits serial data transfers without CPU * intervention and automatic continuous sampling. The SCI provides a * standard non-return to zero mark/space format with wakeup functions * to allow the CPU to run uninterrupted until woken * * For more information, refer to Motorola's "Modular Microcontroller * Family Queued Serial Module Reference Manual" (Motorola document * QSMRM/AD). */ /* * This file was created by John S. Gwynne to support Motorola's 68332 MCU. * * Redistribution and use in source and binary forms are permitted * provided that the following conditions are met: * 1. Redistribution of source code and documentation must retain * the above authorship, this list of conditions and the * following disclaimer. * 2. The name of the author may not be used to endorse or promote * products derived from this software without specific prior * written permission. * * This software is provided "AS IS" without warranty of any kind, * either expressed or implied, including, but not limited to, the * implied warranties of merchantability, title and fitness for a * particular purpose. * *------------------------------------------------------------------ */ #ifndef _RTEMS_M68K_QSM_H #define _RTEMS_M68K_QSM_H /* SAM-- shift and mask */ #undef SAM #define SAM(a,b,c) ((a << b) & c) /* QSM_CRB (QSM Control Register Block) base address of the QSM control registers */ #if SIM_MM == 0 #define QSM_CRB 0x7ffc00 #else #undef SIM_MM #define SIM_MM 1 #define QSM_CRB 0xfffc00 #endif #define QSMCR (volatile unsigned short int * const)(0x00 + QSM_CRB) /* QSM Configuration Register */ #define STOP 0x8000 /* Stop Enable */ #define FRZ 0x6000 /* Freeze Control */ #define SUPV 0x0080 /* Supervisor/Unrestricted */ #define IARB 0x000f /* Inerrupt Arbitration */ #define QTEST (volatile unsigned short int * const)(0x02 + QSM_CRB) /* QSM Test Register */ /* Used only for factor testing */ #define QILR (volatile unsigned char * const)(0x04 + QSM_CRB) /* QSM Interrupt Level Register */ #define ILQSPI 0x38 /* Interrupt Level for QSPI */ #define ILSCI 0x07 /* Interrupt Level for SCI */ #define QIVR (volatile unsigned char * const)(0x05 + QSM_CRB) /* QSM Interrupt Vector Register */ #define INTV 0xff /* Interrupt Vector Number */ #define SCCR0 (volatile unsigned short int * const)(0x08 + QSM_CRB) /* SCI Control Register 0 */ #define SCBR 0x1fff /* SCI Baud Rate */ #define SCCR1 (volatile unsigned short int * const)(0x0a + QSM_CRB) /* SCI Control Register 1 */ #define LOOPS 0x4000 /* Loop Mode */ #define WOMS 0x2000 /* Wired-OR Mode for SCI Pins */ #define ILT 0x1000 /* Idle-Line Detect Type */ #define PT 0x0800 /* Parity Type */ #define PE 0x0400 /* Parity Enable */ #define M 0x0200 /* Mode Select */ #define WAKE 0x0100 /* Wakeup by Address Mark */ #define TIE 0x0080 /* Transmit Complete Interrupt Enable */ #define TCIE 0x0040 /* Transmit Complete Interrupt Enable */ #define RIE 0x0020 /* Receiver Interrupt Enable */ #define ILIE 0x0010 /* Idle-Line Interrupt Enable */ #define TE 0x0008 /* Transmitter Enable */ #define RE 0x0004 /* Receiver Enable */ #define RWU 0x0002 /* Receiver Wakeup */ #define SBK 0x0001 /* Send Break */ #define SCSR (volatile unsigned short int * const)(0x0c + QSM_CRB) /* SCI Status Register */ #define TDRE 0x0100 /* Transmit Data Register Empty */ #define TC 0x0080 /* Transmit Complete */ #define RDRF 0x0040 /* Receive Data Register Full */ #define RAF 0x0020 /* Receiver Active */ #define IDLE 0x0010 /* Idle-Line Detected */ #define OR 0x0008 /* Overrun Error */ #define NF 0x0004 /* Noise Error Flag */ #define FE 0x0002 /* Framing Error */ #define PF 0x0001 /* Parity Error */ #define SCDR (volatile unsigned short int * const)(0x0e + QSM_CRB) /* SCI Data Register */ #define PORTQS (volatile unsigned char * const)(0x15 + QSM_CRB) /* Port QS Data Register */ #define PQSPAR (volatile unsigned char * const)(0x16 + QSM_CRB) /* PORT QS Pin Assignment Rgister */ /* Any bit cleared (zero) defines the corresponding pin to be an I/O pin. Any bit set defines the corresponding pin to be a QSPI signal. */ /* note: PQS2 is a digital I/O pin unless the SPI is enabled in which case it becomes the SPI serial clock SCK. */ /* note: PQS7 is a digital I/O pin unless the SCI transmitter is enabled in which case it becomes the SCI serial output TxD. */ #define QSMFun 0x0 #define QSMDis 0x1 /* * PQSPAR Field | QSM Function | Discrete I/O pin *------------------+--------------+------------------ */ #define PQSPA0 0 /* MISO | PQS0 */ #define PQSPA1 1 /* MOSI | PQS1 */ #define PQSPA2 2 /* SCK | PQS2 (see note)*/ #define PQSPA3 3 /* PCSO/!SS | PQS3 */ #define PQSPA4 4 /* PCS1 | PQS4 */ #define PQSPA5 5 /* PCS2 | PQS5 */ #define PQSPA6 6 /* PCS3 | PQS6 */ #define PQSPA7 7 /* TxD | PQS7 (see note)*/ #define DDRQS (volatile unsigned char * const)(0x17 + QSM_CRB) /* PORT QS Data Direction Register */ /* Clearing a bit makes the corresponding pin an input; setting a bit makes the pin an output. */ #define SPCR0 (volatile unsigned short int * const)(0x18 + QSM_CRB) /* QSPI Control Register 0 */ #define MSTR 0x8000 /* Master/Slave Mode Select */ #define WOMQ 0x4000 /* Wired-OR Mode for QSPI Pins */ #define BITS 0x3c00 /* Bits Per Transfer */ #define CPOL 0x0200 /* Clock Polarity */ #define CPHA 0x0100 /* Clock Phase */ #define SPBR 0x00ff /* Serial Clock Baud Rate */ #define SPCR1 (volatile unsigned short int * const)(0x1a + QSM_CRB) /* QSPI Control Register 1 */ #define SPE 0x8000 /* QSPI Enable */ #define DSCKL 0x7f00 /* Delay before SCK */ #define DTL 0x00ff /* Length of Delay after Transfer */ #define SPCR2 (volatile unsigned short int * const)(0x1c + QSM_CRB) /* QSPI Control Register 2 */ #define SPIFIE 0x8000 /* SPI Finished Interrupt Enable */ #define WREN 0x4000 /* Wrap Enable */ #define WRTO 0x2000 /* Wrap To */ #define ENDQP 0x0f00 /* Ending Queue Pointer */ #define NEWQP 0x000f /* New Queue Pointer Value */ #define SPCR3 (volatile unsigned char * const)(0x1e + QSM_CRB) /* QSPI Control Register 3 */ #define LOOPQ 0x0400 /* QSPI Loop Mode */ #define HMIE 0x0200 /* HALTA and MODF Interrupt Enable */ #define HALT 0x0100 /* Halt */ #define SPSR (volatile unsigned char * const)(0x1f + QSM_CRB) /* QSPI Status Register */ #define SPIF 0x0080 /* QSPI Finished Flag */ #define MODF 0x0040 /* Mode Fault Flag */ #define HALTA 0x0020 /* Halt Acknowlwdge Flag */ #define CPTQP x0000f /* Completed Queue Pointer */ #define QSPIRR (volatile unsigned char * const)(0x100 + QSM_CRB) /* QSPI Receive Data RAM */ #define QSPITR (volatile unsigned char * const)(0x120 + QSM_CRB) /* QSPI Transmit Data RAM */ #define QSPIcR (volatile unsigned char * const)(0x140 + QSM_CRB) /* QSPI Command RAM */ #endif /* _RTEMS_M68K_QSM_H */