UPD78F9222MC(T)-5A4-A NEC, UPD78F9222MC(T)-5A4-A Datasheet - Page 238

• Manufacturer Part Number: UPD78F9222MC(T)-5A4-A
• Description: 8BIT MCU, 4K FLASH, 256B RAM, 78F9222
• Manufacturer: NEC

Specifications of UPD78F9222MC(T)-5A4-A

• Controller Family/series: UPD78
• No. Of I/o's: 17
• Ram Memory Size: 256Byte
• Cpu Speed: 10MHz
• No. Of Timers: 4
• No. Of: RoHS Compliant
• Core Size: 8bit
• Program Memory Size: 4KB
• Oscillator Type: External, Internal

238
(a) Release by unmasked interrupt request
Note Only when sets count clock to f
Note The operation stop time is 17
Remark The broken lines indicate the case when the interrupt request that has released the standby mode is
When an unmasked interrupt request (8-bit timer H1
generated, the STOP mode is released. After the oscillation stabilization time has elapsed, if interrupt
acknowledgment is enabled, vectored interrupt servicing is carried out. If interrupt acknowledgment is
disabled, the next address instruction is executed.
Standby release
Standby release
System clock
System clock
CPU status
oscillation
CPU status
(1) If CPU clock is high-speed internal oscillation clock or external input clock
acknowledged.
signal
signal
Figure 13-5. STOP Mode Release by Interrupt Request Generation
Oscillation
Oscillation
Operation
Operation
(2) If CPU clock is crystal/ceramic oscillation clock
mode
mode
instruction
instruction
STOP
STOP
CHAPTER 13 STANDBY FUNCTION
µ
s (MIN.), 34
RL
User’s Manual U16898EJ5V0UD
STOP mode
STOP mode
/2
Oscillation stops.
7
Oscillation stops.
Interrupt
request
Interrupt
request
µ
s (TYP.), and 67
Operation
Note
stops
Operation
stops
, low-voltage detector, external interrupt request) is
Note
Note
Oscillation stabilization time
.
.
Waiting for stabilization
(HALT mode status)
µ
(set by OSTS)
of oscillation
s (MAX.).
Operation mode
Oscillation
Oscillation
Operation
mode