PC87393VJG National Semiconductor, PC87393VJG Datasheet - Page 92

• 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

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5.0 Game Port (GMP)
5.3.6
Reading this register returns the value of the low byte of the X-axis position counter of game Device A. Before reading this
register verify that bit 0 of GMPXST (Device A 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:
5.3.7
Reading this register returns the value of the high byte of the X-axis position counter of game Device A. Read this register
after reading the GMPAXL register, and verifying that bit 0 of GMPXST (Device A 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:
5.3.8
Reading this register returns the value of the low byte of the Y-axis position counter of game Device A. Before reading this
register verify that bit 1 of GMPXST (Device A 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:
5.3.9
Reading this register returns the value of the high byte of the Y-axis position counter of game Device A. Read this register
after reading the GMPAYL register and verifying that bit 1 of GMPXST (Device A 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:
Bit
Name
Reset
Bit
Name
Reset
Bit
Name
Reset
Bit
Name
Reset
Game Device A X-Axis Position Low Byte (GMPAXL)
Game Device A X-Axis Position High Byte (GMPAXH)
Game Device A Y-Axis Position Low Byte (GMPAYL)
Game Device A Y-Axis Position High Byte (GMPAYH)
Offset 04h
RO
Offset 05h
RO
Offset 06h
RO
Offset 07h
RO
7
0
7
0
7
0
7
0
(Continued)
6
0
6
0
6
0
6
0
Device A X-Axis Position Counter High Byte
Device A Y-Axis Position Counter High Byte
Device A X-Axis Position Counter Low Byte
Device A Y-Axis Position Counter Low Byte
5
0
5
0
5
0
5
0
92
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
0
0
0
0
0
0
0
0