Specifications

142 AMD Geode™ GeodeROM Functional Specification
System Services
32087C
12.1.10.11 Subfunction 0Ah - ACCESS.bus Block Read
Description:
Reads a block of data from an ACCESS.bus device. Sends an offset/command byte so it only works with devices that
expect an address followed by an offset/command followed by a read of data. For devices that do not require an offset/
command, use the special procedure (BE31h).
Not valid for none ACCESS.bus systems (i.e., AMD Geode™ SC1100, SC1200, SC1201, SC2200, and SC3200 pro-
cessors with ACCESS.bus)
Passed:
Returns:
Related Functions:
Requires SPDI2C.ASM
Parameter Description
AX BE0Ah
BX 4E53h (= ‘NS’)
BP Number of the ACCESS.bus to use
CH Chip Address
CL Register
DL Number of bytes to transfer
ES:DI Pointer to data to write to device
Parameter Description
CF 0 = Success
1 = Failure