參數(shù)資料
型號: UPD754264
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
文件頁數(shù): 32/68頁
文件大?。?/td> 318K
代理商: UPD754264
32
μ
PD754264
Table 10-1. Hardware Status After Reset (2/3)
Hardware
RESET signal generation
in the standby mode
RESET signal generation
in operation
A/D converter
Mode register (ADM)
04H
04H
SA register (SA)
7FH
7FH
Clock generator Processor clock control register (PCC)
0
0
Interrupt
Interrupt request flag (IRQ
×××
)
Reset (0)
Reset (0)
function
Interrupt enable flag (IE
×××
)
0
0
Interrupt priority selection register (IPS)
0
0
INT0, 2 mode registers (IM0, IM2)
0, 0
0, 0
Digital port
Output buffer
Off
Off
Output latch
Cleared (0)
Cleared (0)
I/O mode registers (PMGA, C)
0
0
Pull-up resistor setting register (POGA, B)
0
0
Bit sequential buffer (BSB0 to BSB3)
Held
Undefined
Table 10-1. Hardware Status After Reset (3/3)
RESET signal
generation by key
return reset
RESET signal
generation in the
standby mode
RESET signal
generation by WDT
during operation
RESET signal
generation during
operation
Hardware
Watchdog flag (WDF)
Hold the previous status
0
1
0
Key return flag (KRF)
1
0
Hold the previous status
0
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