參數(shù)資料
型號(hào)： UPD753208GT
廠商： NEC Corp.
英文描述： 4-BIT SINGLE-CHIP MICROCONTROLLERS
中文描述： 4位單晶片微控制器
文件頁(yè)數(shù)： 21/80頁(yè)
文件大小： 577K
代理商： UPD753208GT
21
μ
PD753204, 753206, 753208
6. PERIPHERAL HARDWARE FUNCTION
6.1 Digital I/O Port
There are three kinds of I/O ports.
CMOS input ports (Ports 0, 1)
CMOS input/output ports (Ports 2, 3, 6, 8, 9)
N-ch open-drain input/output ports (Port 5)
Total
: 6
: 20
: 4
30
Table 6-1. Types and Features of Digital Ports
Port
Function
Operation and features
Remarks
PORT0
4-bit input
The alternate function pins have an output function
with operation mode when using the serial interface
function.
Also used for the INT4, SCK,
SO/SB0, and SI/SB1 pins.
PORT1
1-bit input
2-bit input dedicated port
Also used for the INT0 and
TI0.
PORT2
4-bit I/O
Can be set to input mode or output mode in 4-bit
units.
Also used for the PTO0 to
PTO2, PCL, and BUZ pins.
PORT3
Can be set to input mode or output mode bit-wise.
Also used for the LCDCL
and SYNC pins.
PORT5
4-bit I/O (N-
channel open-
drain, 13-V
withstand)
Can be set to input mode or output mode in 4-bit
units. On-chip pull-up resistor can be specified
by mask option bit-wise.
—
PORT6
4-bit I/O
Can be set to input mode or output mode bit-wise.
Also used for the KR0 to
KR3 pins.
PORT8
Can be set to input mode
or output mode in 4-bit
units.
Ports 8 and 9 are paired
and data can be input/
output in 8-bit units.
Also used for the S20 to
S23 pins.
PORT9
Also used for the S16 to
S19 pins.
相關(guān)PDF資料
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