參數(shù)資料
型號(hào)： UPD754202GSA
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)： 31/66頁(yè)
文件大?。?/td> 302K
代理商： UPD754202GSA
31
μ
PD754202, 754202(A)
Table 9-1. Hardware Status After Reset (2/3)
Hardware
RESET signal generation
in the standby mode
RESET signal generation
in operation
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 master enable flag (IME)
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, PMGC)
0
0
Pull-up resistor setting register (POGA, POGB)
0
0
Bit sequential buffer (BSB0-BSB3)
Held
Undefined
Table 9-1. 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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