參數(shù)資料
型號: MCF54417CMJ250
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: MICROPROCESSOR, PBGA256
封裝: 12 X 12 MM, ROHS COMPLAINT, MAPBGA-256
文件頁數(shù): 2/60頁
文件大?。?/td> 1107K
代理商: MCF54417CMJ250
MCF5441x ColdFire Microprocessor Data Sheet, Rev. 6
Preliminary—Subject to Change Without Notice
Pin assignments and reset states
Freescale Semiconductor
10
Table 4. Special-case default signal functionality
Pin
Default signal
FB_CLK, FB_OE, FB_R/W,
FB_BE/BWE[1:0],
FB_CS[5:4]
FB_CLK, FB_OE, FB_R/W,
FB_BE/BWE[1:0], FB_CS[5:4]
FB_ALE
FB_ALE or FB_TS
(depending on RCON[3])
FB_BE/BWE3
Boot from NFC, NF_ALE.
Otherwise, FB_BE/BWE3.
FB_BE/BWE2
Boot from NFC, NF_CLE.
Otherwise, FB_BE/BWE2.
FB_CS1
Boot from NFC, NFC_CE.
Otherwise, GPIO.
FB_CS0
Boot from FlexBus, FB_CS0.
Otherwise, GPIO.
FB_TA
Boot from NFC, NFC_R/B.
Otherwise, FB_TA.
ALLPST, PST[3:0],
DDATA[3:0]
ALLPST, PST[3:0], DDATA[3:0]
Table 5. MCF5441x Signal information and muxing
Signal name
GPIO
Alternate 1
Alternate 2
Pullup
(U)
1
Pu
ll
do
wn
(D)
Di
re
c
tio
n
2
V
o
lta
g
e
d
o
main
Pa
d
t
y
p
e
3
1
96
MAPBGA
4
256
MAPBGA
Reset
RESET
U
IEVDD
ssr
K14
K15
RSTOUT
——
OEVDD
msr
L13
L16
Clock
EXTAL/
RMII_REF_CLK
——
I
5
EVDD
ae
G14
G16
XTAL
OEVDD
ae
H14
H16
Mode selection
BOOTMOD[1:0]
I
EVDD
msr
G5,H5
K5, L5
FlexBus
FB_AD[31:24]/
NFC_IO[15:8]6
——
I/O
FBVDD
fsr
A10, A9,
B9, C9, A8,
B8, C8, A7
B9, C8, A9,
B8, D8, A8,
D7, B7
FB_AD[23:16]/
NFC_IO[7:0]6
——
I/O
FBVDD
fsr
B7, C7, C6,
B6, A6, A5,
B5, A4
C7, A7, D6,
A6, B6, D5,
C6, A5
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參數(shù)描述
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