UPD78F0988AGC-8BS Renesas Electronics America, UPD78F0988AGC-8BS Datasheet - Page 298

• Manufacturer Part Number: UPD78F0988AGC-8BS
• Manufacturer: Renesas Electronics America

Specifications of UPD78F0988AGC-8BS

• Lead Free Status / Rohs Status: Supplier Unconfirmed

296
(2) Releasing HALT mode
The HALT mode can be released by the following three sources.
(a) Releasing by unmasked interrupt request
(b) Releasing by non-maskable interrupt request
release signal
If an unmasked interrupt request is generated, the HALT mode is released. If the interrupt request is
enabled at this time, vectored interrupt servicing is performed. If the interrupt request is disabled, the
instruction at the next address is executed.
Remarks 1. The dotted lines indicate the case when the interrupt request that has released the standby
If a non-maskable interrupt request is generated, the HALT mode is released regardless of whether
interrupt requests are enabled or disabled, and vectored interrupt servicing is performed.
Standby
Clock
2. The wait time is as follows.
Operation
mode is acknowledged.
• When vectored interrupt servicing is performed:
• When vectored interrupt servicing is not performed:
Figure 16-2. Releasing HALT Mode by Interrupt Request
mode
instruction
HALT
CHAPTER 16 STANDBY FUNCTION
User’s Manual U13029EJ7V1UD
HALT mode
Interrupt
request
Oscillation
Wait
Wait
Operation mode
8 to 9 clocks
2 to 3 clocks