Peripheral Stop Control - Fujitsu FR60 Hardware Manual

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3.14

Peripheral Stop Control

Peripheral stop control reduces the amount of power consumed by the device by
stopping the supply of clocks to peripheral resources that are not being used.
Because supplying or stopping a clock can be set for each channel of each peripheral
resource, detailed settings appropriate for how resources are used can be made.
■ List of Peripheral Stop Control Registers
The configuration of the peripheral stop control registers is shown below:
RSTOP0
bit
00000494
H
RSTOP1
bit
00000495
H
RSTOP2
bit
00000496
ST27*
H
RSTOP3
bit
00000497
H
*: For the MB91F353A/351A/352A/353A, the settings of bits ST05, ST04, ST15, ST13, ST11, ST27, and ST26 are disabled.
■ Block Diagram of Peripheral Stop Control
Figure 3.14-1 shows a block diagram of peripheral stop control.
15
14
13
ST07
ST06
ST05*
ST04*
7
6
5
ST17
ST16
ST15*
ST14
15
14
13
ST26*
ST25
ST24
7
6
5
-
-
-
Figure 3.14-1 Block Diagram of Peripheral Stop Control
ST32
ST31
12
11
10
ST03
ST02
ST01
4
3
2
ST13*
ST12
ST11*
12
11
10
ST23
ST22
ST21
4
3
2
-
-
ST32
ST31
ST01
ST00
ST02
Each resource clock
UART ch0 / U-TIMER ch0
UART ch1 / U-TIMER ch1
UART ch2 / U-TIMER ch2
A/D
D/A
CLKP
Initial value
9
8
at INIT
at RST
00
ST00
H
1
0
00
ST10
H
9
8
00
ST20
H
1
0
00
ST30
H
Access
xx
W
H
xx
W
H
xx
W
H
xx
W
H
155

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