Z89175 Datasheet, PDF (34/68 Pages) Zilog, Inc. – Voice Processing Controllers

Z89175/Z89176
Voice Processing Controllers
Z8^® FUNCTIONAL DESCRIPTION (Continued)
Zilog
REGISTER POINTER
7654321 0
Working Register
Group Pointer
Expanded Register
Bank Pointer
Z8 Reg. File
FFH
FOH
7FH
0FH
00H
F
E
D
C
B
A
9
8
7
6
5
4
3
2
1
0
Notes:
U = Unknown
† = For ROMless mode, RESET Condition 10110110
* ^{Will not be Reset with a Stop-Mode Recovery}
Z8 STANDARD CONTROL REGISTERS
REGISTER BANK (0)
RESET CONDITION
REGISTER GROUP 15(F)
D7 D6 D5 D4 D3 D2 D1 D0
FFH
FEH
FDH
FCH
FBH
FAH
F9H
† ^F8H
* ^F7H
*
F6H
F5H
% F4
F3H
F2H
F1H
F0H
SPL
SPH
RP
FLAGS
IMR
IRQ
IPR
P01M
P3M
P2M
PRE0
T0
PRE1
T1
TMR
Reserved
U UUU UU U U
U UUU UU U U
0 000 00 0 0
U UUU UU U U
0 UUU UU U U
0 000 00 0 0
U UUU UU U U
0 100 11 0 1
0 000 00 0 0
1 111 11 1 1
U UUU UU U 0
U UUU UU U U
U UUU UU 0 0
U UUU UU U U
0 000 00 0 0
Z8 EXPANDED REGISTER BANK (F)
REGISTER GROUP 0 (0)
RESET CONDITION
*
(F) 0FH
(F) 0EH
WDTMR
HSEC
UUU0 11 0 1
(F) 0DH
Reserved
(F) 0CH
*
(F) 0BH
(F) 0AH
DSP CON
SMR
Reserved
UUU 1 UU U U
0 0 10 00 0 0
(F) 09H
(F) 08H
Reserved
Reserved
(F) 07H
Reserved
(F) 06H
(F) 05H
(F) 04H
P45CON
P5M
P5
UUU 0U U U 0
11 11 11 1 1
UU UUUUU U
(F) 03H
(F) 02H
(F) 01H
(F) 00H
P4M
P4
Reserved
PCON
11 11 11 1 1
UUU U U U U U
11 11 11 1 0
Z8 EXPANDED REGISTER BANK (B)
Z8-DSP Mailbox Interface
(R0...R15)
Z8 STANDARD REGISTER BANK (0)
REGISTER GROUP 0
RESET CONDITION
* ^{(0) 03H}
P3
* ^{(0) 02H}
P2
* ^{(0) 01H}
P1
* ^{(0) 00H}
P0
1 1 1 1 UU U U
UU U U UU U U
UU U U UU U U
UU U U UU U U
Figure 21. Expanded Register File Architecture
34
PRELIMINARY
DS97TAD0100