PC87393VJG National Semiconductor, PC87393VJG Datasheet - Page 93

• 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

5.0 Game Port (GMP)
5.3.10 Game Device B X-Axis Position Low Byte (GMPBXL)
Reading this register returns the value of the low byte of the X-axis position counter of game Device B. Before reading this
register verify that bit 2 of GMPXST (Device B Position Counter Ready) is set to 1. Writing to the offset of this register is
ignored.
This register is functional only in Enhanced mode.
Location:
Type:
5.3.11 Game Device B X-Axis Position High Byte (GMPBXH)
Reading this register returns the value of the high byte of the X-axis position counter of game Device B. Before reading this
register verify that bit 2 of GMPXST (Device B Position Counter Ready) is set to 1. Writing to the offset of this register is
ignored.
This register is functional only in Enhanced mode.
Location:
Type:
5.3.12 Game Device B Y-Axis Position Low Byte (GMPBYL)
Reading this register returns the value of the low byte of the Y-axis position counter of game Device B. Before reading this
register verify that bit 3 of GMPXST (Device B Position Counter Ready) is set to 1. Writing to the offset of this register is
ignored.
This register is functional only in Enhanced mode.
Location:Offset 0Ah
Type:
5.3.13 Game Device B Y-Axis Position High Byte (GMPBYH)
Reading this register returns the value of the high byte of the Y-axis position counter of game Device B. Before reading this
register verify that bit 3 of GMPXST (Device B Position Counter Ready) is set to 1. Writing to the offset of this register is
ignored.
This register is functional only in Enhanced mode.
Location:Offset 0Bh
Type:
Bit
Name
Reset
Bit
Name
Reset
Bit
Name
Reset
Bit
Name
Reset
Offset 08h
RO
Offset 09h
RO
RO
RO
7
0
7
0
7
0
7
0
(Continued)
6
0
6
0
6
0
6
0
Device B X-Axis Position Counter High Byte
Device B Y-Axis Position Counter High Byte
Device B X-Axis Position Counter Low Byte
Device B Y-Axis Position Counter Low Byte
5
0
5
0
5
0
5
0
93
4
0
4
0
4
0
4
0
3
0
3
0
3
0
3
0
2
0
2
0
2
0
2
0
1
0
1
0
1
0
1
0
www.national.com
0
0
0
0
0
0
0
0