參數(shù)資料
型號(hào): MCF54454VR266
廠商: FREESCALE SEMICONDUCTOR INC
元件分類(lèi): 微控制器/微處理器
英文描述: 32-BIT, 266 MHz, RISC PROCESSOR, PBGA360
封裝: 23 X 23 MM, ROHS COMPLIANT, TEPBGA-360
文件頁(yè)數(shù): 47/48頁(yè)
文件大小: 945K
代理商: MCF54454VR266
MCF5445x ColdFire Microprocessor Data Sheet, Rev. 6
Pin Assignments and Reset States
Freescale Semiconductor
8
PCI_GNT[3:0]
GPIO
PCI_GNT[3:0]
PCI_REQ[3:0]
GPIO
PCI_REQ[3:0]
IRQ1
GPIO
PCI_INTA and
configured as an agent.
ATA_RESET
GPIO
ATA reset
Table 4. MCF5445x Signal Information and Muxing
Signal Name
GPIO
Alternate 1
Alternate 2
Pu
ll-
up
(U)
1
Pull-do
w
n
(D)
Direction
2
V
o
lta
g
e
Do
main
MCF54450
MCF54451
256 MAPBGA
MCF54452
MCF54453
MCF54454
MCF54455
360 TEPBGA
Reset
RESET
U
I
EVDD
L4
Y18
RSTOUT
O
EVDD
M15
B17
Clock
EXTAL/PCI_CLK
I
EVDD
M16
A16
XTAL
U3
O
EVDD
L16
A17
Mode Selection
BOOTMOD[1:0]
I
EVDD
M5, M7
AB17, AB21
FlexBus
FB_AD[31:24]
PFBADH[7:0]4
FB_D[31:24]
I/O
EVDD
A14, A13, D12,
C12, B12, A12,
D11, C11
J2, K4, J1, K1–3,
L1, L4
FB_AD[23:16]
PFBADMH[7:0]4
FB_D[23:16]
I/O
EVDD
B11, A11, D10,
C10, B10, A10, D9,
C9
L2, L3, M1–4,
N1–2
FB_AD[15:8]
PFBADML[7:0]4
FB_D[15:8]
I/O
EVDD
B9, A9, D8, C8, B8,
A8, D7, C7
P1–2, R1–3, P4,
T1–2
FB_AD[7:0]
PFBADL[7:0]4
FB_D[7:0]
I/O
EVDD
B7, A7, D6, C6, B6,
A6, D5, C5
T3–4, U1–3, V1–2,
W1
FB_BE/BWE[3:2]
PBE[3:2]
FB_TSIZ[1:0]
O
EVDD
B5, A5
Y1, W2
FB_BE/BWE[1:0]
PBE[1:0]
O
EVDD
B4, A4
W3, Y2
FB_CLK
O
EVDD
B13
J3
FB_CS[3:1]
PCS[3:1]
O
EVDD
C2, D4, C3
W5, AA4, AB3
FB_CS0
——
O
EVDD
C4
Y4
FB_OE
PFBCTL3
O
EVDD
A2
AA1
FB_R/W
PFBCTL2
O
EVDD
B2
AA3
FB_TA
PFBCTL1
U
I
EVDD
B1
AB2
Table 3. Special-Case Default Signal Functionality (continued)
Pin
256 MAPBGA
360 TEPBGA
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