upd70f3017ay Renesas Electronics Corporation., upd70f3017ay Datasheet - Page 146

• Manufacturer Part Number: upd70f3017ay
• Description: V850/sa1tm 32-/16-bit Single-chip Microcontroller
• Manufacturer: Renesas Electronics Corporation.

146
Item
In
external
expansion
mode
Note Even when the HALT instruction has been executed, the instruction fetch operation continues until the on-
HALT Mode Setting
chip instruction prefetch queue becomes full. Once it is full, operation stops in the status shown in Table 6-
1.
AD0 to AD15
A16 to A21
LBEN, UBEN
R/W
DSTB, WRL,
WRH, RD
ASTB
HLDAK
When subclock does
not exist
High impedance
Held
High level output
Operating
Table 6-1. Operating Statuses in HALT Mode (2/2)
Note
When CPU Operates with Main Clock
CHAPTER 6 CLOCK GENERATION FUNCTION
(high impedance when HLDAK = 0)
Note
Note
User’s Manual U12768EJ4V1UD
(high impedance when HLDAK = 0)
When subclock exists
When main clock’s
oscillation continues
When CPU Operates with Subclock
When main clock’s
oscillation is stopped