Maxim-integrated High-Speed Microcontroller Users Guide: DS80C390 S manuels

Manuels d'utilisation et guides de l'utilisateur pour Matériel Maxim-integrated High-Speed Microcontroller Users Guide: DS80C390 S.
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Table des matières

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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