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參數(shù)資料
| 型號： | 9S12HZ256 |
| 廠商： | 飛思卡爾半導體(中國)有限公司 |
| 英文描述： | 16-bit Microcontroller |
| 中文描述： | 16位微控制器 |
| 文件頁數(shù)： | 13/28頁 |
| 文件大?。?/td> | 503K |
| 代理商： | 9S12HZ256 |
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Pin Assignments
16-bit Microcontroller HCS12H Family, Rev. 11.1
Freescale Semiconductor
13
PRELIMINARY
Table 2 Pin Descriptions
Note: Features shown in bold are not available in the 9S12H256 112 pin QFP package.
Note: Features shown in Italics are only available for the “Z” versions
Pin Name
Function 1
Pin Name
Function 2
Pin Name
Function 3
Pin Name
Function 4
Description
EXTAL
Crystal driver and external clock input pins. On reset all the
device clocks are derived from the EXTAL input frequency.
XTAL is the crystal output
Active low bidirectional control signal that acts as an input to
initialize the MCU to a known start-up state, and an output
when an internal MCU function causes a reset.
XTAL
RESET
TEST
Test Input
BKGD
TAGHI
MODC
Function 1: Pseudo-open-drain communication pin for the
background debug function.
Function 2: In MCU expanded modes of operation when in-
struction tagging is on, an input low on this pin during the falling
edge of E-clock tags the high half of the instruction word being
read into the instruction queue.
Function 3: At the rising edge during reset, the state of this pin
is latched to the MODC bit to set the MCU operating mode.
Function 1: Port AD general purpose inputs
Function 2: Analog inputs (ATD)
Function 1: Port AD general purpose inputs
Function 2: Analog inputs (ATD)
Function 3: Key wake-up input pins that can generate an inter-
rupt causing the MCU to exit STOP or WAIT mode.
Function 1: Port A general purpose input or output pins.
Function 2: LCD frontplane segment driver output pin.
Function 3: In MCU expanded modes of operation, these pins
are used for the multiplexed external address and data bus.
Function 1: Port B general purpose input or output pins.
Function 2: LCD frontplane segment driver output pin.
Function 3: In MCU expanded modes of operation, these pins
are used for the multiplexed external address and data bus.
Function 1: Port E general purpose input or output pin
Function 2: LCD frontplane segment driver output pin
Function 3: The XCLKS signal selects between an external
clock or oscillator configuration during reset. This pin should
be at a logic high during reset if an external clock is used on
the EXTAL input pin. This pin should be at a logic low during
reset if an oscillator circuit is configured on EXTAL and XTAL.
Since this pin is an input with a pull-down device during reset,
if the pin is left floating, the default configuration is an
oscillator circuit on EXTAL and XTAL.
Function 4: During MCU expanded modes of operation, the
NOACC signal, when enabled, is used to indicate that the
current bus cycle is an unused or “free” cycle. This signal will
assert when the CPU is not using the bus.
PAD[15:8]
AN[15:8]
PAD[7:0]
AN[7:0]
KWAD[7:0]
PA[7:0]
FP[15:8]
ADDR[15:8]/D
ATA[15:8]
PB[7:0]
FP[7:0]
ADDR[7:0]/DA
TA[7:0]
PE7
FP22
XCLKS
NOACC
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 9S12HZ64 | 16-bit Microcontroller |
| 9S12H256BDGV1 | 9S12H256B Device Guide |
| 9S12KT256DGV1 | MC9S12KT256 Device User Guide |
| 9S12T64AF16V1 | 9S12T64 Device Guide |
| 9S12XDP512DGV1 | Device User Guide for Mask Set 0L40V ( First Silicon) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 9S12HZ64 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:16-bit Microcontroller |
| 9S12KT256DGV1 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:MC9S12KT256 Device User Guide |
| 9S-12MEFA16-IND | 制造商:Hong Kong Crystal 功能描述:HC49USCRYSTALS METAL CAN |
| 9S12T64AF16V1 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:9S12T64 Device Guide |
| 9S12XDP512DGV1 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Device User Guide for Mask Set 0L40V ( First Silicon) |
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