參數(shù)資料
型號: 9S12H256BDGV1
英文描述: 9S12H256B Device Guide
中文描述: 9S12H256B設(shè)備指南
文件頁數(shù): 58/130頁
文件大?。?/td> 2171K
代理商: 9S12H256BDGV1
MC9S12H256 Device User Guide — V01.18
58
2.2 Signal Properties Summary
Table 2-1
summarizes all pin functions.
NOTE:
Bold entries determine pins not available on 112-pin LQFP.
Table 2-1 Signal Properties
Pin Name
Function 1
Pin Name
Function 2
Pin Name
Function 3
Pin Name
Function 4
Powered
by
Internal Pull
Resistor
Description
CTRL
Reset
State
EXTAL
XTAL
RESET
TEST
XFC
VDDPLL
VDDPLL
VDDX2
VDDX2
VDDPLL
None
None
Oscillator Pins
External Reset Pin
Test Input
PLL Loop Filter
Background Debug, Tag High, Mode
Pin
Port AD Inputs, Analog Inputs (ATD)
Port AD Inputs, Analog Inputs
(ATD)
BKGD
TAGHI
MODC
VDDX2
Always
Up
Up
PAD[7:0]
AN[7:0]
VDDA
None
None
PAD[15:8]
AN[15:8]
VDDA
PA[7:0]
FP[15:8]
ADDR[15:8]/
DATA[15:8]
ADDR[7:0]/
DATA[7:0]
VDDX1
PUCR/
PUPAE
PUCR/
PUPBE
PUCR/
PUPEE
Down
Port A I/O, Multiplexed Address/Data
PB[7:0]
FP[7:0]
VDDX1
Down
Port B I/O, Multiplexed Address/Data
PE7
FP22
XCLKS
NOACC
VDDX1
Down
Port E I/O, Access, Clock Select,
LCD driver
Port E I/O, Pipe Status, Mode Input
Port E I/O, Pipe Status, Mode Input
Port E I/O, Bus Clock Output
Port E I/O, LCD driver, Byte Strobe,
Tag Low
Port E I/O, R/W in expanded modes
Port E Input, Maskable Interrupt
Port E Input, Non Maskable Interrupt
PE6
PE5
PE4
IPIPE1
IPIPE0
ECLK
MODB
MODA
VDDX2
VDDX2
VDDX2
While RESET pin is
low: Down
PUCR/
PUPEE
Mode de-
pendent
PE3
FP21
LSTRB
TAGLO
VDDX1
PE2
PE1
PE0
FP20
IRQ
XIRQ
R/W
VDDX1
VDDX2
VDDX2
Up
PH[7:0]
KWH[7:0]
VDDM
PERH/
PPSH
PERJ/
PPSJ
Disabled
Port H I/O, Interrupts
PJ[3:0]
KWJ[3:0]
VDDX1
Disabled
Port J I/O, Interrupts
PK7
FP23
ECS
ROMONE
VDDX1
PUCR/
PUPKE
Down
Port K I/O, Emulation Chip Select,
ROM On Enable
Port K I/O, LCD driver, Extended
Addresses
Port L I/O, LCD drivers
Port L I/O, LCD drivers
PK[3:0]
BP[3:0]
XADDR[17:14]
VDDX1
PL[3:0]
PL[7:4]
FP[19:16]
FP[31:28]
VDDX1
VDDX1
PERL/
PPSL
Down
F
For More Information On This Product,
Go to: www.freescale.com
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