Zilog Z80180 Instrukcja Użytkownika Pobierz pdf (Strona 322)

Z8018x

Family MPU User Manual

UM005003-0703

306

CSI/O

Baud rate selection

150

Block diagram 146

Control/Status register 147, 150, 159,

160, 161, 172

External clock receivetiming diagram 156

External clock transmit timing diagram

154

Internal clock receivetiming diagram 155

Internal clock transmit timing diagram

153

interrupt request generation 151

Operation 151

Receive/Transmit timing diagram 204

Timer initialization, count down and reload

timing diagram

163

Timer output control 163

Timer output timing diagram 164

Cycle timing 87

D

Data formats 131

DC characteristics

Absolute maximum ratings

185

Z80180 186

Z8L180 189

Z8S180 187

DCD0 timing diagram 139

Description, general 1

Design rules, circuit board 170

Direct register bit field definitions 181

Divide ratio 134

DMA

Controller (DMAC)

90

CYCLE STEAL mode timing diagram

106

Edge-sense timing diagram 108

Interrupt request generation 114

Level-sense timing diagram 107

Mode register (DMODE) 97

Operation 104

Status register (DSTAT) 95

TEND0 output timing diagram 108

Transfer request 110

WAIT control register 100

DMAC

Block diagram

92

Register 93

DRAM refresh intervals 89

Dynamic RAM refresh control 86

E

E clock

BUS RELEASE, SLEEP and SYSTEM

STOP modes timing diagram

201

Memory and I/O R/W cycles timing dia-

gram

201

Minimum timing example of PWEL and

PWEH timing diagram

202

Timing conditions 166

Timing diagram (R/W and INTACK cy-

1 2 ... 317 318 319 320 321 322 323 324 325 326

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