Z8673312PSG Datasheet, PDF (55/84 Pages) Zilog, Inc. – CMOS Z8 OTP Microcontrollers

CMOS Z8^® OTP Microcontrollers
Product Specification
51
REGISTER POINTER
76543 21 0
Working Register
Group Pointer
Expanded Register
Group Pointer
%FF
%F0
Z8 Reg. File
%7F
%0F
%00
Reserved
Notes:
U = Unknown
† For ROMless condition: “10110110”
* Will not be reset with a STOP-Mode Recovery.
** Will not be reset with a STOP-Mode Recovery, except bit D0.
REGISTER
% FF
% FE
% FD
% FC
% FB
% FA
SPL
SPH
RP
FLAGS
IMR
IRQ
% F9
† _{% F8}
* % F7
* % F6
% F5
% F4
% F3
% F2
% F1
IPR
P01M
P3M
P2M
PRE0
T0
PRE1
T1
TMR
% F0
Reserved
RESET CONDITION
D7 D6 D5 D4 D3 D2 D1 D0
0 0000 0 00
0 0000 0 00
0 0000 0 00
U UUUU U UU
0 UUUU U UU
0 0000 0 00
U UUUU U UU
0 1001 1 00
0 0000 0 00
1 1111 1 11
U UUUU U UU
U UUUU U UU
U UUUU U UU
U UUUU U UU
0 0000 0 00
EXPANDED REG. GROUP (F)
REGISTER
* % (F) 0F WDTMR
% (F) 0E
* % (F) 0D
Reserved
SMR2
% (F) 0C Reserved
** _{% (F) 0B SMR}
% (F) 0A Reserved
% (F) 09
% (F) 08
% (F) 07
Reserved
Reserved
Reserved
% (F) 06 Reserved
% (F) 05 Reserved
% (F) 04 Reserved
% (F) 03 Reserved
% (F) 02
% (F) 01
Reserved
Reserved
% (F) 00 PCON
RESET CONDITION
U UU01 1 0 1
U UUUU U 0 0
0 0100 0 00
1 1111 1 10
EXPANDED REG. GROUP (0)
REGISTER
* % (0) 03
P3
* _{% (0) 02}
P2
% (0) 01
P1
% (0) 00
P0
RESET CONDITION
1 1 1 1 UU U U
U U U U UU U U
U U U U UU U U
U U U U UU U U
Figure 26. Expanded Register File Architecture
General-Purpose Registers (GPR). These registers are undefined after the device is
powered up. The registers keep their last value after any reset, as long as the reset occurs
in the V_CC voltage-specified operating range. The register R254 is general-purpose on
Z86E33/733/E34. R254 and R255 are set to 00h after any reset or Stop Mode Recovery.
PS022901-0508
Electrical Characteristics