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Z801
8x
Family MP
U Use
r Man
ual
154
UM005
003-0703
Figur
e 60.
T
ransmit T
iming–Extern
al Clock
CKS
TXS
TE
EF
Read or
wri
t
e of C
SI/O
Transmit/Rec
eive
Data Re
gist
er
2.5
f
2.5
f
2.5
f
2.5
f
7.5
f
7.5
f
7.5
f
7.5
f
LSB
MSB
1
2
...
164
165
166
167
168
169
170
171
172
173
174
...
325
326
Family MPU
1
MANUAL OBJECTIVES
3
Intended Audience
3
Manual Organization
3
Sections
4
Appendices
4
Table of Contents
5
List of Figures
8
UM005003-0703
10
List of Tables
12
Status Signals 287
14
FEATURES
16
GENERAL DESCRIPTION
16
PIN DESCRIPTION
22
ARCHITECTURE
27
OPERATION MODES
30
0 and IOC is 0
32
CPU Timing
33
Wait State Generator
42
Bit 7 6 5 4
44
MWI1 MWI0 MWI1 MWI0
44
R/W R/W R/W R/W
44
1, selecting the
45
Processors Only)
46
SLP 2nd Op Code address
50
Add-On Features
51
STANDBY Mode
52
IDLE Mode
55
STANDBY-QUICK RECOVERY Mode
56
Internal I/O Registers
56
–0 Reserved ? ? Reserved
67
Memory Management Unit (MMU)
69
Figure 25. MMU Block Diagram
71
0 during I/O cycles
72
MMU Register Description
75
0 during RESET
77
1 while all bits
78
0. The logical 64KB
78
0000H to FFFFH)
78
Interrupts
80
Interrupt Vector Low Register
81
00H during RESET
82
N/A R/W R/W R/W
83
1 by the El (Enable
84
00000H was caused by
85
INT0 Mode 0
90
INT0 Mode 1
91
INT0 Mode 2
93
00H and
94
INT1, INT2
95
0. Each is also
96
Family MPU User Manual
100
Dynamic RAM Refresh Control
101
TR1 TRW* TR2
102
DMA Controller (DMAC)
105
107
DMAC Register Description
108
DMA Register Description
118
Bits 5–3
119
Bits 2–0
119
DMA Operation
119
Memory to Memory—Channel 0
120
00H) transfer
122
Memory to ASCI - Channel 0
124
Note: X = Don’t care
125
T1 T2 T3 T3T2T1
130
Processors
131
ASCI Register Description
132
08H, 09H)
134
1) these pins
149
1, then the CKA1/
149
0. Even after the
154
Figure 56. ASCI Clock
156
Baud Rate Generator
158
CSI/O Block Diagram
161
CSI/O Registers Description
162
Address = 0BH)
164
Interrupt Request
166
= 0) when
167
PRT Block Diagram
171
PRT Register Description
172
0FH, CHI, 16H, 17H)
174
Timer Control Register (TCR)
176
PRT Interrupts
179
PRT and RESET
179
Secondary Bus Interface
180
On-Chip Clock Generator
183
Miscellaneous
187
Software Architecture
188
CPU REGISTERS
190
Accumulator (A, A')
191
Flag Registers (F, F')
192
Interrupt Vector Register (I)
192
R Counter (R)
192
Index Registers (IX, and IY)
192
Stack Pointer (SP)
193
Program Counter (PC)
193
Flag Register (F)
193
Addressing Modes
195
Implied Register (IMP)
195
Register Direct (REG)
195
Register Indirect (REG)
196
Indexed (INDX)
197
Extended (EXT)
197
Immediate (IMMED)
198
Relative (REL)
198
IO (I/O)
199
DC Characteristics
200
Z80180 DC CHARACTERISTICS
201
Z8S180 DC CHARACTERISTICS
202
Z8L180 DC CHARACTERISTICS
204
AC Characteristics
208
Timing Diagrams
213
STANDARD TEST CONDITIONS
221
Instruction Set
223
CONDITION
224
RESTART ADDRESS
225
MISCELLANEOUS
226
DATA TRANSFER INSTRUCTIONS
238
Special Control Instructions
251
Instruction Summary
253
Op Code Map
263
DDH 22H : LD (mn), IX
264
Bus Control Signal Conditions
267
INTERRUPTS
295
Operating Modes Summary
297
REQUEST PRIORITY
298
OPERATION MODE TRANSITION
299
0000H (all DMA transfers)
301
Status Signals
303
PIN STATUS
304
–A17, A19 — Z 1 A 1
305
–D7— ZZAZ
305
INTERNAL I/O REGISTERS
309
Ch 0 Destination Mode 1,0
315
ORDERING INFORMATION
319
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