I/O PORTS
KS57C2308/P2308/C2316/P2316
10-2
Table 10-1. I/O Port Overview
Port
I/O
Pins
Pin Names
Address
Function Description
0
I
4
P0.0–P0.3
FF0H
4-bit input port.
1-bit and 4-bit read and test are possible.
P0.1 and P0.2 are software configurable as
input or output for
SCK
and SO by SMOD
register.
4-bit pull-up resistors are software assignable.
1
I
4
P1.0–P1.3
FF1H
4-bit input port.
1-bit and 4-bit read and test are possible.
4-bit pull-up resistors are software assignable.
2
I/O
4
P2.0–P2.3
FF2H
4-bit I/O port.
1-bit and 4-bit read/write and test is possible.
4-bit pull-up resistors are software assignable.
3
I/O
4
P3.0–P3.3
FF3H
4-bit I/O Port.
1-bit and 4-bit read/write and test are possible.
4-bit pull-up resistors are software assignable.
Each pin is individually software configurable
as input or output.
4, 5
I/O
8
P4.0–P4.3
P5.0–P5.3
FF4H
FF5H
4-bit I/O port. Each pin can be set to N-channel
open-drain output, up to 5 volts. 1-, 4-, and 8-
bit read/write/test are possible. Ports 4 and 5
can be paired to support 8-bit data transfer.
Pull-up resistors are software assignable; pull-
up resistor are automatically disable for output.
6, 7
I/O
8
P6.0–P6.3
P7.0–P7.3
FF6H
FF7H
4-bit I/O port. Port 6 pins are individually
software configurable as input or output. 1-,
and 4-bit read/write/test are possible. 4-bit
pull-up resistors are software assignable. Ports
6 and 7 can be paired for 8-bit data transfer.
8
O
8
P8.0–P8.7
1F8H–1FFH
Output port for 1-bit data (for use as CMOS
driver only)
Table 10-2. Port Pin Status During Instruction Execution
Instruction Type
Example
Input Mode Status
Output Mode Status
1-bit test
1-bit input
4-bit input
8-bit input
BTST
LDB
LD
LD
P0.1
C,P1.3
A,P0
EA,P4
Input or test data at each pin
Input or test data at output latch
1-bit output
BITR
P2.3
Output latch contents undefined
Output pin status is modified
4-bit output
8-bit output
LD
LD
P2,A
P6,EA
Transfer accumulator data to the
output latch
Transfer accumulator data to the
output pin
Summary of Contents for KS57C2308
Page 30: ...ADDRESS SPACES KS57C2308 P2308 C2316 P2316 2 22 NOTES ...
Page 168: ...SAM47 INSTRUCTION SET KS57C2308 P2308 C2316 P2316 5 94 NOTES ...
Page 170: ......
Page 206: ...POWER DOWN KS57C2308 P2308 C2316 P2316 8 8 NOTES ...
Page 210: ...RESET KS57C2308 P2308 C2316 P2316 9 4 NOTES ...
Page 222: ...I O PORTS KS57C2308 P2308 C2316 P2316 10 12 NOTES ...
Page 272: ...LCD CONTROLLER DRIVER KS57C2308 P2308 C2316 P2316 12 24 NOTES ...
Page 280: ...SERIAL I O INTERFACE KS57C2308 P2308 C2316 P2316 13 8 NOTES ...
Page 294: ...MECHANICAL DATA KS57C2308 P2308 C2316 P2316 15 2 NOTES ...
Page 310: ...KS57P2308 P2316 OTP KS57C2308 P2308 C2316 P2316 16 16 NOTES ...
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