參數(shù)資料
型號: GL424
廠商: Genesys Logic, Inc.
英文描述: SD/MMC Flash Card Controller
中文描述: SD / MMC卡閃存卡控制器
文件頁數(shù): 23/34頁
文件大?。?/td> 506K
代理商: GL424
GL424 SD/MMC Flash Card Controller
2000-2007 Genesys Logic Inc. - All rights reserved.
Page 23
Table 3.11 – 46 PIN LGA Flash Interface
Pin No.
Pin Name
Type
Description
26
CE0_
B
‘0’ for FLASH chip 0 to select active (low-active).
27
CE1_
B
‘0’ for FLASH chip 1 to select active (low-active).
28
ALE
B
FLASH address latch enable
29
CLE
B
FLASH command latch enable
31
RE_
B
FLASH read enable (low active)
32
WE_
B
FLASH write enable (low active)
15
BUSY_
B
FLASH ready when high, busy when low.
30
WP_
B
FLASH write protect (low active)
4
DA0
B
FLASH bus bit0
5
DA1
B
FLASH bus bit1
6
DA2
B
FLASH bus bit2
7
DA3
B
FLASH bus bit3
9
DA4
B
FLASH bus bit4
12
DA5
B
FLASH bus bit5
13
DA6
B
FLASH bus bit6
14
DA7
B
FLASH bus bit7
Table 3.12 – 51 PIN LGA Flash Interface
Pin No.
Pin Name
Type
Description
11
CE0_
B
‘0’ for FLASH chip 0 to select active (low-active).
12
CE1_
B
‘0’ for FLASH chip 1 to select active (low-active).
14
ALE
B
FLASH address latch enable
13
CLE
B
FLASH command latch enable
10
RE_
B
FLASH read enable (low active)
15
WE_
B
FLASH write enable (low active)
9
BUSY_
B
FLASH ready when high, busy when low.
16
WP_
B
FLASH write protect (low active)
1
DA0
B
FLASH bus bit0
2
DA1
B
FLASH bus bit1
3
DA2
B
FLASH bus bit2
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