參數(shù)資料
型號: μPD750064
廠商: NEC Corp.
英文描述: 4 Bit Single Chip Microcontrollers(4位單片微控制器)
中文描述: 4位單片微控制器(4位單片微控制器)
文件頁數(shù): 23/82頁
文件大?。?/td> 376K
代理商: ΜPD750064
23
m
PD750064, 750066, 750068, 750064(A), 750066(A), 750068(A)
6. PERIPHERAL HARDWARE FUNCTION
6.1 Port
There are three types of I/O ports as follows.
CMOS input (PORT0, 1, 11)
CMOS input/output (PORT2, 3, 6)
N-ch open drain input/output (PORT4, 5)
: 12
: 12
: 8
Total
32
Table 6-1. Types and Features of Digital Ports
Port name
Function
Operation and features
Remarks
PORT0
4-bit input
When the serial interface function is used, the dual function pins
function as output ports depending on the operation mode.
Also used for the INT4, SCK,
SO/SB0, SI/SB1 pins.
PORT1
4-bit input only port.
Also used for the INT0-INT2/
TI1, TI0 pins.
PORT2
4-bit input/output
Can be set to input mode or output mode in 4-bit units.
Also used for the PTO0,
PTO1, PCL, BUZ pins.
PORT3
Can be set to input mode or output mode bit-wise.
PORT4
PORT5
4-bit input/output
(N-ch open drain,
13 V withstand
voltage)
Can be set to input mode or output
mode in 4-bit units.
On-chip pull-up
resistor can be specified bit-wise
by mask option.
Ports 4 and 5 are paired
and data can be input/
output in 8-bit units.
PORT6
4-bit input/output
Can be set to input mode or output mode bit-wise.
Also used for the KR0-KR3,
AN4-AN7 pins.
PORT11
4-bit input
4-bit input only port.
Also used for the AN0-AN3
pins.
6.2 Clock Generator
The clock generator generates clocks which are supplied to the peripheral hardware in the CPU. Figure 6-1
shows the configuration of the clock generator.
Operation of the clock generator is determined by the processor clock control register (PCC) and system clock
control register (SCC).
Two types of system clocks are available; main system clock and subsystem clock.
The instruction execution time can also be changed.
0.95
m
s, 1.91
m
s, 3.81
m
s, 15.3
m
s (@ 4.19 MHz with main system clock)
0.67
m
s, 1.33
m
s, 2.67
m
s, 10.7
m
s (@ 6.0 MHz with main system clock)
122
m
s (@ 32.768 kHz with subsystem clock)
相關(guān)PDF資料
PDF描述
μPD750064(A) 4 Bit Single Chip Microcontrollers(4位單片微控制器)
μPD750066 4 Bit Single Chip Microcontrollers(4位單片微控制器)
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