Z89135 Zilog., Z89135 Datasheet - Page 32
Z89135
Manufacturer Part Number
Z89135
Description
Low-Cost DTAD Controller
Manufacturer
Zilog.
Datasheet
1.Z89135.pdf
(66 pages)
- Current page: 32 of 66
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FUNCTIONAL DESCRIPTION (Continued)
Z89135/136 (ROMless)
Low-Cost DTAD Controller
1-32
Working Register
Group Pointer
FOH
7FH
0FH
FFH
00H
7
REGISTER POINTER
6
5
Z8 Reg. File
4
3
2
1
Expanded Register
Figure 20. Expanded Register File Architecture
0
0
Bank Pointer
1
2
3
4
5
6
7
8
9
A
B
C
D
P R E L I M I N A R Y
E
F
†
*
*
*
*
*
*
*
*
Z8 STANDARD REGISTER BANK (0)
REGISTER GROUP 0 (0)
REGISTER BANK (0)
REGISTER GROUP 15(F)
Z8 EXPANDED REGISTER BANK (F)
Z8 EXPANDED REGISTER BANK (B)
REGISTER GROUP 0
Z8 STANDARD CONTROL REGISTERS
F7H
F8H
(0) 03H
(0) 02H
(0) 01H
(0) 00H
FFH
FEH
FDH
FCH
FBH
FAH
F9H
F6H
F5H
% F4
F3H
F2H
F1H
F0H
(F) 0FH
(F) 0EH
(F) 0DH
(F) 0CH
(F) 0BH
(F) 0AH
(F) 09H
(F) 08H
(F) 07H
(F) 06H
(F) 05H
(F) 04H
(F) 03H
(F) 02H
(F) 01H
(F) 00H
Z8-DSP
U = Unknown
†
*
= For ROMless mode, RESET Condition 10110110
Will not be Reset with a Stop-Mode Recovery
Mailbox Interface
SPL
SPH
RP
FLAGS
IMR
IRQ
IPR
P01M
P3M
P2M
PRE0
T0
PRE1
T1
TMR
WDTMR
Reserved
Reserved
DSP CON
SMR
Reserved
Reserved
Reserved
Reserved
P45CON
P5M
P5
P4M
P4
Reserved
PCON
P3
P2
P1
P0
Reserved
(R0...R15)
RESET CONDITION
RESET CONDITION
RESET CONDITION
D7 D6 D5 D4 D3 D2 D1 D0
U
U
U
U
0
U
0
0
U
0
0
1
U
U
U
U
0
U
U
1
U
U
U
U
0
1
1
1
U
U
U
U
1
U
U
U
U
U
0
U
U
0
U
1
0
1
U
U
U
U
0
U
0
1
1
1
U
U
U
U
1
U
U
U
U
U
0
U
U
0
U
0
0
1
U
U
U
U
0
U
1
1
1
1
U
U
0
U
U
0
U
0
0
1
U
U
U
U
0
0
1
0
0
1
U
1
U
1
1
U
U
U
U
U
U
U
U
U
0
U
U
0
U
1
0
1
U
U
U
U
0
1
0
1
1
1
U
U
U
U
DS97TAD0300
1
U
0
U
1
U
1
U
1
U
U
U
U
U
U
0
U
U
0
U
1
0
1
U
U
U
U
0
U
0
U
0
U
1
1
U
1
U
U
0
U
U
0
U
0
0
1
U
U
0
U
0
U
U
U
U
U
U
0
U
U
U
0
U
U
0
U
1
0
1
0
U
0
U
0
1
0
1
1
0
U
U
U
U
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