W78E378 Datasheet, PDF (8/38 Pages) Winbond – MONITOR MICROCONTROLLER

Preliminary W78E378/W78C378/W78C374
SFRs accessed using 'Direct Addressing', continued
REGISTER ADDRESS
BITS
POWER
ON RESET
16 P1*
90h
8
00h
17 P2*
A0h
8
FFh
18 P3*
B0h
8
1Fh
19 TMREG*
C0h
3
00h
20 S1CON*
D8h
8
00h
21 S1STA
D9h
8
F8h
22 S1DAT
DAh
8
FFh
23 S1ADR1
DBh
8
00h
24 S1ADR2
DCh
8
00h
25 S2CON*
E8h
8
00h
26 S2STA
E9h
8
F8h
27 S2DAT
EAh
8
FFh
28 S2ADR1
EBh
8
00h
28 S2ADR2
ECh
8
00h
Notes:
1. The SFRs marked with an asterisk (*) are both bit- and byte-addressable.
2. Port 1 and P3.5−P3.7 outputs low during & after reset.
3. "x" means no reset action.
4. The SFRs in the shaded region are new-defined.
RESET
00h
FFh
1Fh
xxh
00h
F8h
FFh
00h
00h
00h
F8h
FFh
00h
00h
* Modified PCON
BIT
NAME
0
ADCS2
1
PD
2
GF0
3
GF1
4
TEST0
5
TEST1
6
ADCcal
7
CPUhalt
FUNCTION
ADC channel Select bit 2
Power Down bit
General purpose flag bit
General purpose flag bit
Test purpose flag bit
Test purpose flag bit
Set 0/1 to select 1.0V/3.0V for ADC calibration
Set to let CPU halt when the chip runs internally
* TMREG: Test Mode Register
BIT
NAME
0
TM1
Test Mode1
1
TM2
Test Mode2
2
TM3
Test Mode3
FUNCTION
R/W
R/W
R/W
R/W
R/W
R/W
R
R/W
R/W
R/W
R/W
R
R/W
R/W
R/W
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