參數(shù)資料
型號: UPD70741GC-25-8EU
廠商: NEC Corp.
元件分類: 16位微控制器
英文描述: V821TM 32-/16-BIT MICROPROCESSOR
中文描述: V821TM 32-/16-BIT微處理器
文件頁數(shù): 48/112頁
文件大?。?/td> 605K
代理商: UPD70741GC-25-8EU
μ
PD70741
48
Table 13-1. Clock Generator Operation under Standby Control
Clock source
Standby mode
Oscillator
(OSC)
PLL
synthesizer
Clock supply
to the pe-
ripheral I/O
Clock supply
to the CPU
PLL mode
Resonator-
Ordinary
o
o
o
o
based
HALT
o
o
o
×
oscillation
IDLE
o
o
×
×
STOP
×
×
×
×
External clock
Ordinary
×
o
o
o
HALT
×
o
o
×
IDLE
×
o
×
×
STOP
×
×
×
×
Direct mode
Ordinary
×
×
o
o
HALT
×
×
o
×
IDLE
×
×
×
×
STOP
×
×
×
×
Remark
o : Operating
×
: Stopped
Table 13-2. Operation Status in HALT, IDLE, or STOP Mode
Note
High impedance when HLDAK = 0
Clock generator
Internal system clock
CPU
I/O line
Peripheral function
Internal data
A0-A23, UBE
D0-D15
CS0-CS3
IORD, IOWR
MWR/LMWR, UMWR
REFRQ, RAS, LCAS, UCAS
HLDRQ
CLKOUT
Operating
Operating
Stopped
Retained
Operating
All internal data, such as in CPU registers is retained.
PC output
Note
High impedance
1
Note
1 (other than during CBR
refresh)
Note
Operating
Note
Clock output (when the clock output is not inhibited)
Stopped
Stopped
Stopped
PC output
1
CBR self-refresh
Stopped
1
Function
HALT mode
IDLE mode
STOP mode
CBR self-refresh
Note
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