SC1200UFH-266 AMD (ADVANCED MICRO DEVICES), SC1200UFH-266 Datasheet - Page 111

• Manufacturer Part Number: SC1200UFH-266
• Manufacturer: AMD (ADVANCED MICRO DEVICES)

Specifications of SC1200UFH-266

• Operating Temperature (min): 0C
• Operating Temperature (max): 85C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Lead Free Status / Rohs Status: Not Compliant

SuperI/O Module
5.5.3
The RTC registers can be accessed (see Section 5.4.2.1
"LDN 00h - Real-Time Clock" on page 98) at any time dur-
ing normal operation mode (i.e.,when V
ommended operation range). This access is disabled
during battery-backed operation. The write operation to
these registers is also disabled if bit 7 of the CRD Register
is 0.
1.
AMD Geode™ SC1200/SC1201 Processor Data Book
Index 00h
Index 01h
Index 02h
Programmable
Programmable
Programmable
Bit
7:0
7:0
7:0
Overlaid on RAM bytes in range 0Eh-7Fh. See Section 5.4.2.1 "LDN 00h - Real-Time Clock" on page 98.
Index
0Ah
0Bh
0Ch
0Dh
00h
01h
02h
03h
04h
05h
06h
07h
08h
09h
RTC Registers
Description
Seconds Data. Values may be 00 to 59 in BCD format or 00 to 3B in binary format.
Seconds Alarm Data. Values may be 00 to 59 in BCD format or 00 to 3B in binary format.
When bits 7 and 6 are both set to one (“11”), unconditional match is selected.
Minutes Data. Values can be 00 to 59 in BCD format, or 00 to 3B in binary format.
1
1
1
Type
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
RO
RO
SB
Seconds Alarm Register - SECA (R/W)
SEC. Seconds Register
SECA. Seconds Alarm Register
MIN. Minutes Register
MINA. Minutes Alarm Register
HOR. Hours Register
HORA. Hours Alarm Register
DOW. Day Of Week Register
DOM. Date Of Month Register
MON. Month Register
YER. Year Register
CRA. RTC Control Register A
CRB. RTC Control Register B
CRC. RTC Control Register C
CRD. RTC Control Register D
DOMA. Date of Month Alarm Register
MONA. Month Alarm Register
CEN. Century Register
Name
is within the rec-
Table 5-19. RTC Register Map
Seconds Register - SEC (R/W)
Table 5-20. RTC Registers
Minutes Register - MIN (R/W)
Note: Before attempting to perform any start-up proce-
This section describes the RTC Timing and Control Regis-
ters that control basic RTC functionality.
dures, read about bit 7 (VRT) of the CRD Register.
32579B
Reset Type: V
Reset Type: V
Reset Type: V
Bit specific
Bit specific
Bit specific
V
V
V
V
V
V
V
V
V
V
V
V
V
V
Reset
PP
PP
PP
PP
PP
PP
PP
PP
PP
PP
PP
PP
PP
PP
Type
PUR
PUR
PUR
PUR
PUR
PUR
PUR
PUR
PUR
PUR
PUR
PUR
PUR
PUR
PP
PP
PP
PUR
PUR
PUR
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