Hardware Interfaces - Intel 536EPXX - PRELIMINARY Datasheet

8.0

Hardware Interfaces

The 536EPXX chipset supports hardware interfaces for the host, expansion bus, non-volatile RAM
(NVRAM), CODEC/DAA, speaker, microphone, and general-purpose I/O functions. The hardware
interfaces are demonstrated below.
Figure 4. Modem System Block Diagram (536EPXX)
NVRAM
HOST
PCI BUS
COMPUTER
8.1 NVRAM Interface
536EPXX is designed to support either 2K or 4K EEPROM in x8 or x16 mode. NVRAM can be
used to customize the Subsystem Vendor ID and Subsystem ID per the manufacturer's
requirement. 536EPXX can also be used without the NVRAM, in this case 536EPXX will default
to one of the ID's listed in
PCI configuration data to use.
Table 16. PCI Subsystem Vendor ID and Subsystem ID with No EEPROM
Preliminary Datasheet
Host Accelerated Modem 56K V.92 Chipset — 536EPXX
DSP
DQ82536
Table 16
Table 16
GPIO[10:8]
000
001
010
011
100
101
110
111
000
Intel Confidential
536EPXX
DAA
CODEC
AFE
MD1724
depending on how the GPIO 8 through 11 are tied.
describes this.
Subsystem Vendor
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Intel (ID = 8086)
TIP
RING
MICROPHONE / SPEAKER
(OPTIONAL)
Subsystem ID
1040h
1040h
1040h
1040h
1040h
1040h
1040h
1040h
1000h
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