PC87393VJG National Semiconductor, PC87393VJG Datasheet - Page 127

• Manufacturer Part Number: PC87393VJG
• Description: IC, SUPER I/O DEVICE, TQFP-100
• Manufacturer: National Semiconductor

Specifications of PC87393VJG

• Data Rate: 2Mbps
• Supply Voltage Range: 3V to 3.6V
• Logic Case Style: TQFP
• No. Of Pins: 100
• Operating Temperature Range: 0°C to +70°C
• Termination Type: SMD
• Transceiver Type: Interface
• Rohs Compliant: No

8.0 Legacy Functional Blocks
8.3.3
SP1 and SP2 Register Maps for UART Functionality
04h - 07h
Offset
Offset
00h
00h
01h
02h
03h
04h
05h
06h
07h
00h
01h
02h
03h
1. When bit 7 of this Register is set to 1, bits 6-0 of BSR select the bank, as
SPR/ASCR Scratchpad/Auxiliary Status and Control
shown in Table 38.
Mnemonic
Mnemonic
LCR/BSR Line Control/Bank Select
LBGD(H)
LBGD(L)
7
0
1
1
1
1
1
1
1
1
1
BSR
LCR
MCR
MSR
RXD
FCR
TXD
LSR
IER
EIR
6
0
1
1
1
1
1
1
1
1
x
1
1
5
1
1
1
1
1
1
x
x
x
x
Table 38. Bank Selection Encoding
BSR Bits
(Continued)
Receiver Data Port
Transmitter Data Port
Interrupt Enable
Event Identification (Read Cycles)
FIFO Control (Write Cycles)
Line Control
Bank Select
Modem/Mode Control
Link Status
Modem Status
Legacy Baud Generator Divisor Port (Low Byte)
Legacy Baud Generator Divisor Port (High Byte)
4
0
0
0
0
1
1
Table 37. Bank 0 Register Map
x
x
x
x
Table 39. Bank 1 Register Map
3
x
x
x
x
0
0
1
1
0
0
2
x
x
x
x
0
1
0
1
0
1
1
x
x
1
x
0
0
0
0
0
0
127
Register Name
Register Name
0
x
x
x
1
0
0
0
0
0
0
Reserved
Reserved
Selected
Bank
0
1
1
1
2
3
4
5
6
7
(SP1 + SP2)
Functionality
UART + IR
IR Only
(SP2)
Type
Type
R/W
R/W
R/W
R/W
R/W
R/W
R/W
RO
RO
RO
RO
W
W
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