CS98000-CQ Cirrus Logic, Inc., CS98000-CQ Datasheet - Page 35

• Manufacturer Part Number: CS98000-CQ
• Description: Internet DVD (iDVD) Chip Solution
• Manufacturer: Cirrus Logic, Inc.

6.9
This 16 bits parallel host interface allows the
CS98000 to be a host master, controlling other de-
vices that would be used on the same system. The
interface supports a programmable protocols and
speeds, including multiplexed and non-multiplexed
addressing. Slaves with different protocols can be
connected at the same time, controlled by different
chip selects.
6.10 DVD I/O Channel Interface
This interface connects to standard DVD loaders,
and consists of three parts: Control, DVD Data and
CD Data. This interface shares CS98000 pins with
the Host Master/ATAPI interface. The definition of
the pins is set via register programming, and the
two modes are mutually exclusive.
6.11 General Purpose Input/Output
The CS98000 provides 37 GPIO pins, each with in-
dividual output tri-state controls. Additional pins
may also be re-defined and GPIO’s.
DS525PP1
111, 115, 101,
106
85
92
93
95
120
102, 107, 97, 99,
100
109, 110, 112,
113, 114, 116,
117, 118, 121,
122, 123, 125,
127, 130, 132,
134
Pin
Host Master/ATAPI Interface
(GPIO)
Signal Name
H_CS[3..0]
H_D[15..0]
H_A[4..0]
H_CKO
H_RDY
H_ALE
H_WR
H_RD
Table 14. Host Master Interface
Type
O
O
O
O
O
O
B
I
Host Chip Select{3..0]. The host master can be pro-
grammed to use a different protocol for each of the 4 chip
selects
Host address latch enable. Used for modes which multiplex
upper address information onto the data lines
Host Read Request.
Host Write Request.
Host Ready. Connect to pull-up or pull-down if host is not
used.
Host clock out, required for some synchronous slaves
Host Address[4..0].
Host Data Bus[15..0]. These pins can also output Host
Address during the address phase for multiplexed
address/data mode. Tie together to pull-up or pull-down if
host is not used.
6.12 Power and Ground
The CS98000 requires 3 different types of power
supplies – PLLs, internal logic and IO pins -. The
PLLs and internal logic use 2.5 V power supply,
The IO pins use 3.3 V power supply, and are 5 V
input tolerant.
Description
CS98000
35