Q67100-H6440 Просмотр технического описания (PDF) - Siemens AG

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производитель

Q67100-H6440

ICs for Communications

Siemens AG 

SAB 82538

SAF 82538

Pin Definitions and Function (cont’d)

Pin No.

Symbol Input (I) Function

Output (O)

63

XTAL1 I

Crystal Connection

64

XTAL2 (O)

If the internal oscillator is used for clock

generation the external crystal has to be

connected to these pins. Moreover, XTAL1 may

be used as common clock input for all channels

provided by an external clock generator.

All versions: common use for both channels in

clock modes 4,6,7.

Version 2 upward: additionally used in clock mode

0b and for master clock applications.

152 → 145 PA0 … 7 I/O

53 → 60 PB0 … 7

142 → 135 PC0 … 7

65 → 68 PD0 … 3

Parallel Port (Port A,B,C,D)

Four general purpose bi-directional parallel ports

(port A,B,C: 8 bit; port D: 4 bit). Every pin is

individually programmable to operate as an

output or an input (Port Configuration Register

PCRA,B,C,D).

– If defined as output, the state of the pin is

directly controlled via the microprocessor

interface(PortValueRegister PVRA,B,C,D)

– If defined as input, its state can be read via

PVRA,B,C,D. All changes may be indicated via

an interrupt status (Port Interrupt Mask register

PIMA,B,C,D, Port Interrupt Status register

PISA,B,C,D, interrupt is output on pin INT).

18, 32, 61, VSS

I

102, 114,

143

Ground (0 V)

For correct operation, all six pins have to be

connected to ground.

17, 31, 62, VDD

I

103, 144

Positive Power Supply (5 V)

For correct operation, all five pins have to be

connected to positive power supply.

83

TEST

I

Test Input

This pin always has to be connected to VSS.

(Test input for the manufacturer)

Semiconductor Group

21

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