Z86L79 Datasheet, PDF (20/58 Pages) Zilog, Inc. – Low-Voltage Microcontroller

Z86L79/80
Low-Voltage Microcontroller
Zilog
REGISTER POINTER
7654321 0
Working Register
Group Pointer
Expanded Register
Group Pointer
Z8 Register File**
FF
FO
7F
Reserved
Reserved
0F
00
EXPANDED REG. GROUP (0)
REGISTER**
* (0) 03
P3
* (0) 02
P2
* _{(0) 01}
P1
* _{(0) 00}
P0
RESET CONDITION
00 0 0UUUU
UUU UUU U U
UUU UUU UU
UUU UU UUU
U = Unknown
* Will not be reset with a Stop-Mode Recovery
** All addresses are in Hexadecimal
† Will not be reset with a Stop-Mode Recovery,
except Bit 0.
Z8^® STANDARD CONTROL REGISTERS
REGISTER**
FF
FE
FD
FC
FB
FA
F9
* ^F8
* ^F7
* ^F6
F5
F4
F3
F2
F1
F0
SPL
SPH
RP
FLAGS
IMR
IRQ
IPR
P01M
P3M
P2M
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
RESET CONDITION
D7 D6 D5 D4 D3 D2 D1 D0
UUUUUUU U
UU UUU U U U
00 00 00 0 0
UU U U UU U U
0 UU U UU U U
000 000 0 0
UUU UUU U U
0100 110 1
0 0 0 000 0 0
11 1 11 1 1 1
UUUUUU U U
UUU UUUU U
UU UUUU U U
UU U UUU U U
0 00 000 0 0
0UU0 0 0 0 0
EXPANDED REG. GROUP (F)
REGISTER**
* ^{(F) 0F}
(F) 0E
WDTMR
Reserved
(F) 0D
SMR2
(F) 0C
Reserved
† ^{(F) 0B}
SMR
(F) 0A
Reserved
(F) 09
Reserved
(F) 08
Reserved
(F) 07
Reserved
(F) 06
Reserved
(F) 05
Reserved
(F) 04
Reserved
(F) 03
Reserved
(F) 02
Reserved
(F) 01
Reserved
*
(F) 00
PCON
RESET CONDITION
UU U 0 1 1 0 1
U0 U0 0 0 UU
00100 0U0
UUU U U U U 0
EXPANDED REG. GROUP (D)
REGISTER**
(D) 0C
(D) 0B
(D) 0A
(D) 09
Reserved
HI8
L08
HI16
(D) 08
L016
(D) 07
TC16H
(D) 06
(D) 05
TC16L
TC8H
(D) 04
(D) 03
(D) 02
TC8L
Reserved
CTR2
(D) 01
(D) 00
CTR1
CTR0
RESET CONDITION
UU U UU U U U
UUUUUU UU
UUU UU U UU
UUUUU UUU
U UUUUUU U
UUUUU UUU
UUUUUUUU
U U U U U U UU
0 UUUUU U 0
0 0 UUUUU U
0 UUUUUU 0
3-20
Figure 15. Expanded Register File Architecture
PRELIMINARY