Holtek TinyPower HT69F40A Manual page 95

HT69F30A/HT69F40A/HT69F50A
TinyPower I/O Flash 8-Bit MCU with LCD & EEPROM
TM
TM Input/Output Pin Control Registers
Selecting to have a TM input/output or whether to retain its other shared function, is implemented
using one or two registers, with a single bit in each register corresponding to a TM input/output pin.
Setting the bit high will setup the corresponding pin as a TM input/output, if reset to zero the pin
will retain its original other function.
TM Input/Output Pin Control Register List
• HT69F30A
Register
Name
7
PAFS —
SFS —
• HT69F40A/HT69F50A
Register
Name
7
PAFS —
PBFS PBFS7
PDFS PDFS7
SFS SFS7
PAFS Register – HT69F30A
Bit 7
Name —
R/W —
P�R —
Bit 7 Unimplemented, read as "0"
Bit 6 PAFS6: Port A 6 Function Selection
0: I/O
1: TP0_0
Bit 5 PAFS5: Port A 5 Function Selection
0: I/O
1: TP1_1
Bit 4 Unimplemented, read as "0"
Bit 3 PAFS3: Port A 3 Function Selection
0: I/O
1: TP1_0
Bit 2 Unimplemented, read as "0"
Bit 1 PAFS1: Port A 1 Function Selection
0: I/O
1: TP0_1
Bit 0 Unimplemented, read as "0"
Rev. 1.20
Bit
6 5 4
PAFS6 PAFS� —
SFS6 SFS� SFS4
Bit
6 5 4
PAFS6 PAFS� —
PBFS6 PBFS� PBFS4
PDFS6 PDFS� PDFS4
SFS6 SFS� SFS4
6 5 4
PAFS6 PAFS� —
R/W R/W —
0 0 —
9�
3 2 1
PAFS3 — PAFS1
— — —
3 2 1
PAFS3 — PAFS1
— — —
PDFS3 PDFS2 PDFS1
SFS3 SFS2 SFS1
3 2 1
PAFS3 — PAFS1
R/W — R/W
0 — 0
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0
—
—
0
—
—
PDFS0
SFS0
0
—
—
—