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8 CLOCK GENERATOR (CLG)
S1C17001 TECHNICAL MANUAL
EPSON
75
0x5080: PCLK Control Register (CLG_PCLK)
Register name Address
Bit
Name
Function
Setting
Init. R/W
Remarks
PCLK Control
Register
(CLG_PCLK)
0x5080
(8 bits)
D7–2
–
reserved
–
–
–
0 when being read.
D1–0
PCKEN[1:0]
PCLK enable
PCKEN[1:0]
PCLK supply
0x3
R/W
0x3
0x2
0x1
0x0
Enable
Not allowed
Not allowed
Disable
D[7:2] Reserved
D[1:0]
PCKEN[1:0]: PCLK Enable Bits
Permit or prohibit clock (PCLK) feed to internal peripheral modules.
Table 8.4.2: PCLK control
PCKEN[1:0]
PCLK feed
0x3
Permitted (on)
0x2
Setting prohibited
0x1
Setting prohibited
0x0
Prohibited (off)
(Default: 0x3)
The PCKEN[1:0] default setting is 0x3, which enables clock feed. Stop the clock feed to reduce power
consumption if the peripheral modules listed below are not required.
Peripheral modules operated using PCLK
• Prescaler (PWM & capture timer, remote controller, P port)
•
UART
• 8-bit timer
• 16-bit timer Ch.0 to 2
• Interrupt controller
•
SPI
•
I
2
C
• P port & port MUX
• PWM & capture timer
• MISC register
• Remote controller
Since the following peripheral modules are not operated using PCLK except for control register access,
PCLK is not required after setting the control register to start operations.
• Clock timer
• Stopwatch timer
•
Watchdog
timer
• 8-bit OSC1 timer
Note: Do not set PCKEN[1:0] to 0x2 or 0x1, since doing so will stop the operation of certain pe-
ripheral modules.
Содержание S1C17001
Страница 1: ...Technical Manual S1C17001 CMOS 16 BIT SINGLE CHIP MICROCONTROLLER ...
Страница 31: ...3 MEMORY MAP AND BUS CONTROL 22 EPSON S1C17001 TECHNICAL MANUAL This page intentionally left blank ...
Страница 33: ...4 POWER SUPPLY VOLTAGE 24 EPSON S1C17001 TECHNICAL MANUAL This page intentionally left blank ...
Страница 63: ...6 INITERRUPT CONTROLLER 54 EPSON S1C17001 TECHNICAL MANUAL This page intentionally left blank ...
Страница 87: ...8 CLOCK GENERATOR CLG 78 EPSON S1C17001 TECHNICAL MANUAL This page intentionally left blank ...
Страница 91: ...9 PRESCALER PSC 82 EPSON S1C17001 TECHNICAL MANUAL This page intentionally left blank ...
Страница 133: ...11 16 BIT TIMER T16 124 EPSON S1C17001 TECHNICAL MANUAL This page intentionally left blank ...
Страница 185: ...14 8 BIT OSC1 TIMER T8OSC1 176 EPSON S1C17001 TECHNICAL MANUAL This page intentionally left blank ...
Страница 211: ...16 STOPWATCH TIMER SWT 202 EPSON S1C17001 TECHNICAL MANUAL This page intentionally left blank ...
Страница 219: ...17 WATCHDOG TIMER WDT 210 EPSON S1C17001 TECHNICAL MANUAL This page intentionally left blank ...
Страница 241: ...18 UART 232 EPSON S1C17001 TECHNICAL MANUAL This page intentionally left blank ...
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