參數(shù)資料
型號: MB90F57APMT
廠商: FUJITSU LTD
元件分類: 微控制器/微處理器
英文描述: 16-BIT, FLASH, MICROCONTROLLER, PQFP120
封裝: PLASTIC, LQFP-120
文件頁數(shù): 102/133頁
文件大?。?/td> 2509K
代理商: MB90F57APMT
MB90570 Series
70
15. Chip Select Output
This module generates a chip select signal for facilitating a memory and I/O unit, and is provided with eight chip
select output pins. When access to an address is detected with a hardware-set area set for each pin register,
a select signal is output from the pin.
(1) Register Configuration
Chip selection control register 1, 3, 5, 7 (CSCR1, CSCR3, CSCR5, CSCR7)
Address
CSCR1 : 000081H
CSCR3 : 000083H
CSCR5 : 000085H
CSCR7 : 000087H
bit 7
bit 0
ACTL
OPEL
CSA1
CSA0
bit 15
bit 14
bit 13
bit 12
bit 11
bit 10
bit 9
bit 8
............
(CSCR0, CSCR2, CSCR4, CSCR6)
R/W
bit 15
bit 8
(CSCR1, CSCR3, CSCR5, CSCR7)
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
............
R/W: Readable and writable
—: Reserved
Chip selection control register 0, 2, 4, 6 (CSCR0, CSCR2, CSCR4, CSCR6)
Initial value
---- 0000 B
Initial value
---- 0000 B
R/W
ACTL
OPEL
CSA1
CSA0
Address
CSCR0 : 000080H
CSCR2 : 000082H
CSCR4 : 000084H
CSCR6 : 000086H
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