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(yè)數(shù)： 25/41頁(yè)
文件大小： 617K
代理商： T90FJR
25
T90FJR
Rev. A
–
7-Sep-01
0
module A before module B
1
module B before module A
Power Control Register
This register is used to control the power of the modules if the power switch is imple-
mented (optional, see application note). When the VCC bit is 0, no VCC is supposed to
be applied to the modules so all the outputs to the modules are in high impedance state.
When VCC = 0, ADOE# and DATOE# are also high to put the address and data buffers
outputs in high impedance. This implies that when no VCC switch is used, the VCC bit
should anyway be set to enable the control signals to be applied to the modules.
Power control : (@18h)
VCC
module power supply switch control
changing this bit is only allowed when LOCK = 1
0 power off
1 power on
VCLVL
module VCC output pin active level
changing this bit is only allowed when LOCK = 0
0
VCC pin is active-low
1
VCC pin is active-high
VCDRV
module VCC output pin structure
changing this bit is only allowed when LOCK = 0
0
VCC buffer is open drain
1
VCC buffer is push-pull
Module Auto Select
Registers
When automatic destination selection is used, the module auto select mask indicates
the high order address bits used for decoding the address windows for each module and
the module auto select pattern register determines the address at which the module is
addressed.
Auto select mask high : (@01h mod A, @0Ah mod B)
Auto select mask low : (@02h mod A, @0Bh mod B)
MA[25:15]
address mask for decoding
0
address bit doesn
’
t care
VCDRV
VCLVL
X
X
X
X
X
VCC
X
X
X
X
X
MA25
MA24
MA23
MA22
MA21
MA20
MA19
MA18
MA17 MA16
MA15
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