cs5535 National Semiconductor Corporation, cs5535 Datasheet - Page 389
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cs5535
Manufacturer Part Number
cs5535
Description
Geode Cs5535 Companion Multi-function South Bridge
Manufacturer
National Semiconductor Corporation
Datasheet
1.CS5535.pdf
(555 pages)
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Revision 0.8
UART/IR Controller Register Descriptions
5.12.7 Bank 4 Register Descriptions
The bit formats for the registers in Bank 4 are summarized in Table 5-42. Detailed descriptions of each register follow.
5.12.7.1
I/O Offset
Type
Reset Value
IRCR1 enables the Sharp-IR or SIR IR mode in non-extended mode of operation. Upon reset, all bits are set to 0.
5.12.7.2
I/O Offset
Type
Reset Value
BSR is the same as the BSR register at I/O Offset 03h in Bank 0. See Section 5.12.3.4 "Link Control/Bank Select Regis-
ters" on page 373 for bit descriptions.
00h-01h
04h-07h
Offset
02h
03h
Bit
7:4
3:2
1:0
I/O
7
Register
IR Control Register 1 (IRCR1)
Bank Select Register (BSR)
Name
RSVD
IRCR1
BSR
RSVD
Name
RSVD
IR_SL[1:0]
RSVD
02h
R/W
00h
03h
R/W
00h
6
RSVD
BKSE
Description
Reserved. Write as 0.
Sharp-IR or SIR Mode Select. These bits enable Sharp-IR and SIR modes in non-
extended mode. They allow selection of the appropriate IR interface when extended
mode is not selected. These bits are ignored when extended mode is selected.
00: UART (Default).
01: Reserved.
10: Sharp-IR.
11: SIR.
Reserved. Write as 0.
7
5
Table 5-42. Bank 4 Bit Map
6
IRCR1 Bit Descriptions
RSVD
IRCR1 Register Map
4
5
389
(Continued)
3
4
IR_SL[1:0]
RSVD
RSVD
Bits
BSR[6:0]
3
IR_SL[1:0]
2
2
1
1
RSVD
RSVD
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