142
User’s Manual U11969EJ3V0UM00
CHAPTER 6 CLOCK GENERATOR FUNCTION
6.5.2 Control registers
(1)
Power save control register (PSC)
This is an 8-bit register that controls the power save mode. This is a specific register, and only the access
by the specific sequence is valid during write cycles. For details, refer to 3.4.9 Specific registers.
This register can be read/written in 8- or 1-bit units.
Bit Position
Bit Name
Function
7, 6
DCLKn
Disable CLKOUT
(n = 1, 0)
Specifies operation mode of CLKOUT pin
DCLK1
DCLK0
Mode
0
0
Normal output mode
0
1
RFU (reserved)
1
0
RFU (reserved)
1
1
Clock output inhibit mode
5
TBCS
Time Base Count Select
Selects a number of dividing of time base counter, and specifies oscillation stabilization time.
0: 2
15
/f
TBC
(s)
1: 2
16
/f
TBC
(s)
For details, refer to explanation of “Time base counter (TBC)” in section 6.6 “Specifying
Oscillation Stabilization Time”.
4
CESEL
Crystal/External Select
Specifies functions of X1 and X2 pins
0: Oscillator connected to X1 and X2 pins
1: External clock connected to X1 pin
When CESEL = 1, the software STOP mode cannot be used.
2
IDLE
IDLE Mode
Specifies IDLE mode.
When “1” is written to this bit, IDLE mode is entered.
When IDLE mode is released, this bit is automatically reset to “0”.
1
STP
STOP Mode
Specifies software STOP mode.
When “1” is written to this bit, STOP mode is entered.
When STOP mode is released, this bit is automatically reset to “0”.
Note 00H (in ROM-less mode 1 and 2, in single-chip mode 2)
C0H (in single-chip mode 1 and the PROM mode)
Address
FFFFF070H
7
DCLK1
PSC
6
DCLK0
5
TBCS
4
CESEL
3
0
2
IDLE
1
STP
0
0
After reset
Note
Содержание V854 UPD703006
Страница 2: ...2 User s Manual U11969EJ3V0UM00 MEMO ...
Страница 22: ...22 User s Manual U11969EJ3V0UM00 MEMO ...
Страница 80: ...80 User s Manual U11969EJ3V0UM00 MEMO ...
Страница 134: ...134 User s Manual U11969EJ3V0UM00 MEMO ...
Страница 156: ...156 User s Manual U11969EJ3V0UM00 MEMO ...
Страница 294: ...294 User s Manual U11969EJ3V0UM00 MEMO ...
Страница 320: ...320 User s Manual U11969EJ3V0UM00 MEMO ...
Страница 324: ...324 User s Manual U11969EJ3V0UM00 MEMO ...
Страница 336: ...336 User s Manual U11969EJ3V0UM00 MEMO ...
Страница 376: ...376 User s Manual U11969EJ3V0UM00 MEMO ...
Страница 382: ...382 User s Manual U11969EJ3V0UM00 MEMO ...
Страница 394: ...394 User s Manual U11969EJ3V0UM00 MEMO ...
Страница 396: ...396 User s Manual U11969EJ3V0UM00 MEMO ...