Z87C33 Datasheet, PDF (50/72 Pages) Zilog, Inc. – CMOS Z8® MCU Consumer Controller Processor

Z87C33
CMOS Z8“ MCU Consumer Controller Processor
44
Bit
Position
D4
Bit
Field
Reserved
D3
Port 0 I/O
D2
Port 0 I/O
D1
Reserved
D0
Port 3
Reset
R/W State Description
W
1
Reserved
1: Reserved must be "1"
W
1
Port 0†
0: Low EMI
1: Standard
W
1
Port 0
0: Open-Drain
1: Push-Pull Active
W
1
Reserved
1: Reserved must be "1"
W
0
Port 3 Comparator Output
0: P34, P37 Standard Output
1: P34, P37 Comparator Output
Stop-Mode Recovery Register
The Stop-Mode Recovery Register, SMR, controls clocking functions. READ/
WRITE and reset states for bits D7–D0 are listed in Table 33.
Table 33. Stop-Mode Recovery Register—SMR 0Bh/R11 Bank Fh:READ/WRITE
Bit
D7
D6 D5
D4
D3
D2
D1
D0
R/W
R
W
W
W
W
W
W
W
Reset
0
0
1
0
0
0
0
0
Note: R = Read, W = Write.
Bit
Position
D7
Bit
Field
Stop
Reset
R/W State Description
R
0 Stop Flag³
0: POR
1: Stop Recovery
D6
Stop-Mode
W
0 Stop-Mode Recovery Level
Recovery
0: Low
1: High
Notes:
1. For the Stop-Mode Recovery Source, either SMR or SMR2 can be selected. If SMR is used to
select the Stop-Mode Recovery Source, bits D1–D0 of SMR2 must be 0.
2. Cleared by RESET and SMR.
3. Not reset after Stop-Mode Recovery.
PS015601-1003