UPD784026 Renesas Electronics Corporation., UPD784026 Datasheet - Page 116
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UPD784026
Manufacturer Part Number
UPD784026
Description
16/8-bit Single-chip Microcontrollers
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.UPD784026.pdf
(759 pages)
- Current page: 116 of 759
- Download datasheet (3Mb)
76
Caution If the STOP mode is used when external clock input is used, the EXTC bit of the oscillation stabilization
STBC
time specification register (OSTS) must be set (1) before setting the STOP mode. If the STOP mode is used
when the EXTC bit of the OSTS is in the cleared (0) state when external clock input is used, the PD784026
may be damaged or suffer reduced reliability.
When setting the EXTC bit to 1, be sure to input a clock in phase reverse to that of the clock input to the
X1 pin, to the X2 pin.
7
0
6
0
CK1
5
Figure 4-3 Standby Control Register (STBC) Format
CK0
4
CHAPTER 4 CLOCK GENERATOR
3
2
0
STP
1
HLT
0
CK1
0FFC0H
Address
STP
0
0
1
1
0
0
1
1
CK0
HLT
0
1
0
1
0
1
0
1
On Reset
30H
Operating Mode
Normal mode
HALT mode
STOP mode
IDLE mode
Intermal System Clock Selection
f
f
f
f
XX
XX
XX
XX
/2 (12.5 MHz)
/4 (6.25 MHz)
/8 (3.125 MHz)
/16 (1.5625 MHz)
R/W
R/W
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