Datasheet > MPC89X515A

MPC89X515A

更新时间： 2022-12-17 00:00:14

品牌	Logo	应用领域
笙泉 - MEGAWIN		微控制器
页数	文件大小	规格书
38页	505K
描述
8-bit micro-controller

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数据手册

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MPC89X515A 数据手册

Pin Description

Pin Definition

Pin Number

Type

Description

Pin Name

DIP-40

PLCC-44

PQFP-44

P0.0 (AD0)

P0.1 (AD1)

P0.2 (AD2)

P0.3 (AD3)

P0.4 (AD4)

P0.5 (AD5)

P0.6 (AD6)

P0.7 (AD7)

P1.0 (T2)

P1.1 (T2EX)

P1.2

Port0 is an open-drain, bi-directional IO port.

When 1s are written to Port0, they become

high-impedance inputs. Port0 is also multiplexed

with low-order address or data bus during

accesses to external program and data memory.

BU General-purposed I/O with weak pull-up

resistance inside. When 1s are written into Port1,

the strong output driving PMOS only turn-on two

clock periods and then the weak pull-up

resistance keep the port high.

P1.3

P1.4

P1.0 is also used as one of event sources for

timer2, or output carrier of timer2, alias T2.

P1.5

P1.6

P1.1 is also used as one of interrupt-controlling

sources for time2, alias T2EX.

P1.7

P2.0 (A8)

BU Port2 is an 8-bit bi-directional I/O port with pull-up

resistance. Except being as GPIO, Port2 emits

the high-order address byte during accessing to

external program and data memory.

P2.1 (A9)

P2.2 (A10)

P2.3 (A11)

P2.4 (A12)

P2.5 (A13)

P2.6 (A14)

P2.7 (A15)

P3.0 (RXD)

P3.1 (TXD)

P3.2 (INT0)

P3.3 (INT1)

P3.4 (T0)

BU General-purposed I/O with weak pull-up

resistance inside. When 1s are written into Port1,

the strong output driving PMOS only turn-on two

clock periods and then the weak pull-up

resistance keep the port high. Port3 also serves

other special functions of this device.

P3.5 (T1)

P3.0 and P3.1 act as receiver and transceiver of

the data for UART function block,

P3.6 (/WR)

P3.7 (/RD)

Alias RXD and TXD.

MPC89x515A Data Sheet

MEGAWIN

1 2 345 6 7...38

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