參數(shù)資料
型號(hào): CS96100-CM
英文描述: Consumer IC
中文描述: 消費(fèi)性IC
文件頁數(shù): 47/58頁
文件大?。?/td> 1099K
代理商: CS96100-CM
CS98100
47
6.3
These pins are used to interface the CS98100 with
external SDRAM of various sizes. Typical config-
urations are two 1 Mbyte x16-bit, or one 2 Mbyte
SDRAM Interface
x32-bit.
Table 18
gives instructions on how to in-
terface any particular configuration of SDRAM.
Pin
Signal Name
Type
Description
43, 44, 45, 46,
47, 49, 51, 52,
53, 54, 55, 63,
64, 65, 70, 72,
73, 74, 76, 77,
78, 80, 83, 5,
6, 7, 9, 11, 12, 13,
14, 16
M_D[31:0]
B
Memory Data Bus. CS98100 can use all 32 bits or can use
only M_D[15:0], in which case M_D[31:16] can be left
unconnected.note: 32 bits wide is recommended
2, 3, 4, 84, 85, 96,
97, 98,
100,101,102, 103
M_A[11.0]
O
Memory Address Bus. Connect in order starting with M_A[0]
to all RAM address pins not already connected to DR_BS_N
or DR_AP.
20
DR_CKO
O
Memory Clock
17
DR_CKE
O
Memory Clock Enable
35
DR_BS_N
O
Bank Selection. Always connect to RAM BS or BS0 pin.
37
DR_AP
O
Memory Auto Pre-charge. Always connect to RAM AP pin.
40
DR_RAS_N
O
Memory Row Address Strobe
42
DR_CAS_N
O
Memory Column Address Strobe
199
DR_WE_N
O
Memory Write Enable
203,202,201,200
DR_DQM[3..0]
O
IO Mask of Data Bus DR_DQM[3] -> DR_Data[31:24]
Table 18. SDRAM Interface Pin Assignments
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