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參數(shù)資料
型號: W90221F
廠商: WINBOND ELECTRONICS CORP
英文描述: PA-RISC Embedded Micro-Controller(惠普PA-RISC結(jié)構(gòu)的32位嵌入式微控制器)
中文描述: PA - RISC的嵌入式微控制器(惠普的PA - RISC結(jié)構(gòu)的32位嵌入式微控制器)
文件頁數(shù): 18/174頁
文件大小: 2102K
代理商: W90221F
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The above information is the exclusive intellectual property of Winbond Electronics and shall not be disclosed, distributed or reproduced without permission from Winbond.
18
Versi on 0. 4, March/2000
Block Diagram :
CONTROL FROM CPU
POEN
PODATA
PIMASK
PINT
CLKREG
PIDATA
Interrupt
module
DEBOUNCE
EN
TO Interrupt module
IN
OUT
IO pin
Features :
Each PIO port can generate a separate positive and negative edge interrupt.
Each PIO port consists of a bi-directional buffer connected to the appropriate W90221 pin
The input buffer is routed directly to a debounce circuit.
The debounce circuit performs a 2 TCLK_BUN clock debounce of the input signal.
Programmable debounce circuit sampling clocks(TCLK_BUN), the clock range is TCLK ~ TCLK/128.
Related Pins :
Table 5.3-1 : GPIO definitions
# of GPIO
cfg = 00
cfg = 01
cfg = 1x
GPIO[0:7]
PIO[0:7] (io)
PIO[0:7] (io)
ED[0:7] (io)
GPIO[8]
PIO[8] (io)
PIO[8] (io)
nInit (out)
GPIO[9]
PIO[9] (io)
PIO[9] (io)
nSelectIn (out)
GPIO[10]
PIO[10] (io)
CPUCLK
(out)
Select (in)
GPIO[11]
PIO[11] (io)
MCLK_ctl
(out)
PError (in)
GPIO[12]
PIO[12] (io)
MCLK_data
(out)
nFault (in)
GPIO[13]
PIO[13] (io)
PIO[13] (io)
PIO[13] (io)
GPIO[14]
PIO[14] (io)
PIO[14] (io)
PIO[14] (io)
GPIO[15]
GNT2#
(out)
GNT2#
(out)
nAutoFd
(out)
GPIO[16]
GNT3#
(out)
GNT3#
(out)
nStrobe
(out)
GPIO[17]
PREQ2# (in)
PREQ2# (in)
nAck
(in)
GPIO[18]
Note :
cfg = bit[4:5] of port 0xf000003e
Operation Modes :
PREQ3# (in)
PREQ3# (in)
Busy
(in)
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