CS5535-UDCF AMD (ADVANCED MICRO DEVICES), CS5535-UDCF Datasheet - Page 347

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CS5535-UDCF

Manufacturer Part Number
CS5535-UDCF
Description
Manufacturer
AMD (ADVANCED MICRO DEVICES)
Datasheet

Specifications of CS5535-UDCF

Operating Temperature (min)
0C
Operating Temperature (max)
85C
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Lead Free Status / RoHS Status
Compliant

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Programmable Interval Timer Register Descriptions
6.8.2.7
I/O Address
Type
Reset Value
AMD Geode™ CS5535 Companion Device Data Book
I/O Address 43h[7:0] = 11101xx0
Bit
5:4
3:1
Bit
7:6
5:4
7
6
0
7
PIT Mode Control Word (PIT_MODECTL_WORD)
CNTR_SEL
Name
CNTR2_OUT
CNTR2_LOAD
CNTR2_RW
CNTR2_MODE
BCD
Name
CNTR_SEL
RW_MODE
43h
R/W
00h
6
PIT_TMR2_STS_SPKR Bit Descriptions (Continued)
Description
Counter 2 Output. Returns current state of counter output signal.
Counter 2 Loaded. Last count written is loaded?
0: Yes.
1: No.
Counter 2 Read /Write Mode.
00: Counter latch command.
01: R/W LSB only.
10: R/W MSB only.
11: R/W LSB, followed by MSB.
Counter 2 Current Mode.
000: Interrupt on terminal count.
001: Programmable one-shot.
010, 110: Rate generator.
011, 111: Square wave generator.
100: Software triggered pulse generator.
101: Hardware triggered pulse generator.
BCD Mode.
0: Binary.
1: BCD (binary coded decimal).
Description
Counter Select.
00: Counter 0.
01: Counter 1.
10: Counter 2.
11: Read-back Command (Note 1).
Current Read/Write Mode.
00: Counter latch command (Note 2).
01: R/W LSB only.
10: R/W MSB only.
11: R/W LSB, followed by MSB.
5
PIT_MODECTL_WORD Bit Descriptions
PIT_MODECTL_WORD Register Map
R/W_MODE
4
3
CNTR_MODE
2
31506B
1
BCD
0
347

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