Maxim-integrated High-Speed Microcontroller Users Guide: DS80C390 S Manuale Utente Scaricare il pdf (Pagina 98)

High-Speed Microcontroller User’s Guide: DS80C390 Supplement

98 of 158

Figure 6-3. COMBINED INTERNAL, EXTERNAL PROGRAM/DATA MEMORY MAP

PROGRAM

MEMORY

DATA

MEMORY

CE0

=512k x 8

CE1

=512k x 8

PCE0

=512k x 8

PCE1

=512k x 8

PCE2

=512k x 8

000000h

0FFFFFh

080000h

07FFFFh

000000h

100000h

0FFFFFh

080000h

07FFFFh

17FFFFh

4011FFh

401000h

400FFFh

INTERNAL

512-byte SRAM

(CAN0, CAN1)

INTERNAL

4kB SRAM

(

1kB is stack

)

400000h

1 2 ... 93 94 95 96 97 98 99 100 101 102 103 ... 157 158

DS80C390 Supplement 1
5 of 158 5
MEMORY MAP 6
REGISTER MAP 6
BIT ADDRESSABLE LOCATIONS 6
WORKING REGISTERS 6
7 of 158 7
8 of 158 8
SPECIAL FUNCTION REGISTERS 9
LSHIFT 10
PORT 4 (P4) 14
STACK POINTER (SP) 15
DATA POINTER LOW 0 (DPL) 15
DATA POINTER HIGH 0 (DPH) 15
DATA POINTER LOW 1 (DPL1) 15
DATA POINTER HIGH 1 (DPH1) 16
DATA POINTER SELECT (DPS) 16
POWER CONTROL (PCON) 17
TIMER/COUNTER CONTROL (TCON) 18
TIMER MODE CONTROL (TMOD) 19
TIMER 0 LSB (TL0) 20
TIMER 1 LSB (TL1) 20
TIMER 0 MSB (TH0) 20
TIMER 1 MSB (TH1) 20
CLOCK CONTROL (CKCON) 21
PORT 1 (P1) 22
CE1 CE0 25
CE2 CE1 CE0 25
CE3 CE2 CE1 CE0 25
SERIAL DATA BUFFER 0 (SBUF0) 29
REVISION ID REGISTER (RID) 29
ADDRESS PAGE REGISTER (AP) 30
PORT 2 (P2) 34
PORT 5 (P5) 34
CAN 0 CONTROL REGISTER (C0C) 36
CAN 0 STATUS REGISTER (C0S) 39
INTERRUPT ENABLE (IE) 44
7 6 5 4 3 2 1 0 46
PORT 3 (P3) 50
INTERRUPT PRIORITY (IP) 52
SERIAL PORT CONTROL (SCON1) 55
SERIAL DATA BUFFER 1 (SBUF1) 56
STATUS REGISTER (STATUS) 58
TIMED ACCESS REGISTER (TA) 60
TIMER 2 CONTROL (T2CON) 61
TIMER 2 MODE (T2MOD) 62
TIMER 2 CAPTURE LSB (RCAP2L) 63
TIMER 2 CAPTURE MSB (RCAP2H) 63
TIMER 2 LSB (TL2) 63
TIMER 2 MSB (TH2) 64
CLOCK OUTPUT REGISTER (COR) 64
PROGRAM STATUS WORD (PSW) 65
MULTIPLIER A REGISTER (MA) 68
MULTIPLIER B REGISTER (B) 68
MULTIPLIER C REGISTER (C) 69
WATCHDOG CONTROL (WDCON) 71
ACCUMULATOR (A or ACC) 74
CAN 1 CONTROL REGISTER (C1C) 74
CAN 1 STATUS REGISTER (C1S) 77
B REGISTER (B) 87
SYSTEM CLOCK SELECTION 91
EXTERNAL MEMORY INTERFACING 93
CE0 CE1 CE2 CE3 94
START390.A51 file 95
POWER MANAGEMENT MODES 100
RESET SOURCES 101
POWER-ON/FAIL RESET 101
WATCHDOG TIMER RESET 101
Reset Output Low (RSTOL) 102
IN-SYSTEM DISABLE MODE 103
PORTS 4 AND 5 104
OUTPUT FUNCTIONS 105
TIMER/COUNTER 0 AND 1 106
MODES 0 AND 1 106
TIMER/COUNTER 2 108
CLOCK-OUT MODE 108
(/RL2 = 0) 108
BAUD RATE GENERATOR MODE 108
AUTO RELOAD MODE (/RL2 = 0) 109
DIVIDE-BY-13 OPTION 110
PROGRAMMABLE CLOCK OUTPUT 110
DS80C390 111
22-BIT PAGED ADDRESSING MODE 114
MOVX @DPTR, A) 115
JMP @A+DPTR or the MOVC A 115
CMA=1, xxxx=4010 121
MOVX Data 122
CMA=1, xxxx=4011 123
MEME MDME 132
FRAME TYPES 134
ACK Delimiter 136
End of Frame 136
CRC Field ACK Field 136
CAN INTERRUPTS 139
INTERRUPT 140
VECTOR 140
MESSAGE CENTER 15 141
Transmitting Data Messages 142
Receiving Data Messages 142
Case 1: Automatic Reply 145
USING THE AUTOBAUD FEATURE 149
SYNC_SEG 152
153 of 158 153
QUTSEG t)LEN_TS(t 154
QUSJW t)SJW(t 154
Threefold Bit Sampling: 155
Bus Rate Timing Example: 155
(DS80C390 Supplement Only) 156
157 of 158 157
40-BIT ACCUMULATOR 158

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Maxim-integrated High-Speed Microcontroller Users Guide: DS80C390 S Manuale Utente Pagina 98

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