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PCCard Configuration
When inserted into the computer, the GPR400 must be configured by the
host. To accomplish this, the host must first read the C.I.S. starting at
address 000h in the Attribute Memory. Then the GPR400 can be configured
using the Configuration Option Register (address FA0h) for an I/O base
address : 0300h, 0320h, 0340h, 0200h, 220h, 0240h or any space 32-byte
long memory space.
Configuration Option Register structure (see also PCCard Standard):
µs)
The register value 01 configures the GPR400 for all I/O addresses; the
INPACK signal is then systematically transmitted (see the PCCard
Standard).
© GEMPLUS
bit 7: set to 1, this bit initializes the GPR400 (minimum pulse of 5
bit 6-5 : reserved (reset to 0)
bit 4-0 : these bits are defined by the I/O base address as
described in the following table:
Configuration Option
register value
18
19
1A
10
11
12
01
THE GPR400 HARDWARE
I/O address
300h-31Fh
320h-33Fh
340h-35Fh
200h-21Fh
220h-23Fh
240h-25Fh
all 32 bytes
boundary address
5
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