Renesas R8C/15 Información técnica Pagina 93

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R8C/14 Group, R8C/15 Group 12. Watchdog Timer
Rev.2.10 Jan 19, 2006 Page 79 of 253
REJ09B0164-0210
Figure 12.2 OFS and WDC Registers
Watchdog Timer Control Register
Symbol Address After Reset
WDC
000Fh 00011111b
Bit Symbol Bit Name Function RW
WDC7
(b6)
Reserved Bit Set to “0
Prescaler Select Bit 0 : Divide-by-16
1 : Divide-by-128
RW
Reserved Bit Set to “0
RO
b7 b6 b5 b4
00
RW
High-order Bit of Watchdog Timer
(b4-b0)
RW
(b5)
b3 b2 b1 b0
Option Function Select Register
(1)
Symbol Address Before Shipment
OFS
0FFFFh FFh
(2)
Bit Symbol Bit Name Function RW
NOTES :
1.
2.
CSPROINI
Count Source Protection
Mode After Reset Select
Bit
0 : Count source protect mode enabled after reset
1 : Count source protect mode disabled after reset
RW
(b6-b4)
Reserved Bit Set to “1
RW
0 : ROM code protect disabled
1 : ROMCP1 enabled
RW
ROMCP1
ROM Code Protect Bit 0 : ROM code protect enabled
1 : ROM code protect disabled
RW
0 : Watchdog timer starts automatically after reset
1 : Watchdog timer is inactive after reset
1
The OFS register is on the flash memory. Write to the OFS register with a program.
(b1)
RW
Reserved Bit Set to “1
ROMCR
ROM Code Protect
Disabled Bit
111
b7 b6 b5 b4
If the block including the OFS register is erased, “FFh” is set to the OFS register.
b3 b2 b1 b0
WDTON RW
Watchdog Timer Start
Select Bit
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