CS98000 Cirrus Logic, Inc., CS98000 Datasheet - Page 40

• Manufacturer Part Number: CS98000
• Description: DVD Video Processor
• Manufacturer: Cirrus Logic, Inc.

87, 83, 79, 76,
74, 71, 68, 64,
67, 70, 72, 75,
78, 80, 86, 88,
60, 56, 54, 49,
46, 44, 40, 33,
37, 42, 45, 48,
51, 55, 59. 62
2, 3, 5, 6, 7, 9,
10, 11, 13, 14,
15, 16
19
22
21
23
24
25
27
32, 31, 29, 28
6.2
These pins are used for used for basic functions
such as clock and reset input. See
I
(8-bit slave address is 0x30 for write, and 0x31 for
read).
40
186
187
201
202
205
206
2
C pins are used for both master and slave mode
Pin
Pin
Miscellaneous Interface Pins
Signal Name
M_DQM[3..0]
Signal Name
M_D[31..0]
M_A[11..0]
M_RAS_N
M_CAS_N
MFG_TEST
XTLCLOCK
M_WE_N
M_BS_N
RESET_N
M_CKO
M_CKE
M_AP
IR_IN
SDA
SCL
Table 17. Miscellaneous Interface Pins
Table
Type
Table 18. SDRAM Interface
Type
O
O
O
O
O
O
O
O
O
B
B
B
I
I
I
I
17. The
Memory Data Bus. CS98000 can use all 32 bits or can use
Bank Selection. Always connect to RAM BS or BS0 pin.
Memory Row Address Strobe
only M_D[15..0], in which case M_D[31..16] can be left un-con-
nected.
Memory Address Bus. Connect in order starting with M_A[0] to
all RAM address pins not already connected to M_BS_L or
M_AP. Unused upper M_A pins unconnected.
Memory Clock
Memory Clock Enable
Memory Auto Pre-charge. Always connect to RAM AP pin.
Memory Column Address Strobe
Memory Write Enable
IO Mask of Data Bus M_DQM[3] -> M_D[31:24]
I
I
Infrared Input, from IR receiver.
27 MHz Clock Input.
Reset Input, active low.
Manufacturing test pin, should always connect to ground.
2
2
C Clock
C Data
6.3
These pins are used to interface the CS98000 with
some external SDRAM. The CS98000 can inter-
face with SDRAM of various sizes. Both 16 and
32-bit data width is supported, but best perfor-
mance is achieved with 32 bits. Follow the instruc-
tions in
particular configuration of SDRAM.
SDRAM Interface
Table 18
Description
Description
on how to interface with any
CS98000