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參數(shù)資料
| 型號(hào)： | T90FJR |
| 廠商： | ATMEL CORP |
| 元件分類： | 消費(fèi)家電 |
| 英文描述： | Dual Common Interface Hardware Controller- CIMax |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP128 |
| 封裝： | PLASTIC, QFP-128 |
| 文件頁數(shù)： | 24/41頁 |
| 文件大小： | 617K |
| 代理商： | T90FJR |
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24
T90FJR
Rev. A
–
7-Sep-01
Destination Select
Register
The Destination Select Register is used to choose which peripheral will be accessed by
the microprocessor when selecting the CIMaX
. The three available destinations are
the two modules and the external device selected by the EXTCS output signal from the
CIMaX
. For each module, the access mode (memory / IO) is chosen in the Module
Control Register.
The destination select can be achieved either manually when AUTOSEL bit is 0 using
SEL bits or automatically by configuring the select masks and patterns registers.
Destination select: (@17h)
AUTOSEL
automatic module selection
uses high order addresses to choose module or external device (using EXTCS)
0
manual selection
1
automatic selection
SEL[1:0]
module select
relevant only when AUTOSEL = 0
00
no destination selected
01
select module A
10
select module B
11
select external device using EXTCS
XCSMOD
EXTCS signal mode
changing this bit is only allowed when LOCK = 0
retransmit CS signal input from processor when external device is selected or regener-
ate EXTCS as done for CE# signal and simultaneously generate IORD# or IOWR#
0
transmit mode
1
regenerate mode
XCSLVL
EXTCS output pin active level
changing this bit is only allowed when LOCK = 0
0
EXTCS pin is active-low
1
EXTCS pin is active-high
XCSDRV
EXTCS output pin structure
changing this bit is only allowed when LOCK = 0
0
EXTCS buffer is open drain
1
EXTCS buffer is push-pull
TSWAP
TS daisy chain order swap (SCM Patent Pending)
X
TSWAP
XCSDRV
XCSLVL
XCSMOD
SEL1
SEL0
AUTOSEL
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