Z86E04 Datasheet, PDF (24/44 Pages) Zilog, Inc. – CMOS Z8 OTP MICROCONTROLLERS

Z86E04/E08
CMOS Z8 OTP Microcontrollers
Zilog
FUNCTIONAL DESCRIPTION (Continued)
Table 3. Control Registers
Reset Condition
Addr. Reg.
D7 D6 D5 D4 D3 D2 D1 D0 Comments
FF
SPL
FD
RP
0
0
0
00
0
0
0
0
0
0
00
0
0
0
FC
FLAGS
U
U
U
UU
U
U
U
FB
IMR
0
U
U
UU
U
U
U
FA
IRQ
U
U
0
00
0
0
0 IRQ3 is used for positive edge
detection
F9
IPR
U
U
U
UU
U
U
U
F8*
P01M
U
U
U
0U U
0
1
F7*
P3M
U
U
U
UU
U
0
0
F6*
P2M
1
1
1
11
1
1
1 Inputs after reset
F5
PRE0
U
U
U
UU
U
U
0
F4
T0
U
U
U
UU
U
U
U
F3
PRE1
U
U
U
UU
U
0
0
F2
T1
U
U
U
UU
U
U
U
F1
TMR
0
0
0
00
0
0
0
Note: *Registers are not reset after a STOP-Mode Recovery using P27 pin. A subsequent reset will cause these control registers to
be reconfigured as shown in Table 4 and the user must avoid bus contention on the port pins or it may affect device reliability.
24
PRELIMINARY
DS97Z8X1104