Oki MSM83C154S Timer control register Tcon, Interrupt request flag for external interrupt, TR1

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¡ Semiconductor

MSM80C154S/83C154S

Timer control register (TCON)

NAME

ADDRESS

MSB

LSB

7

6

5

4

3

2

1

0

TCON

88H

TF1

TR1

TF0

TR0

IE1

IT1

IE0

IT0

BIT LOCATION

FLAG

FUNCTION

TCON.0

IT0

External interrupt 0 signal is used in level-detect mode when this bit is "0" and in

trigger detect mode when "1".

TCON.1

IE0

Interrupt request flag for external interrupt 0.

The bit is reset automatically when an interrupt is serviced.

The bit can be set and reset by software when IT0 = "1".

TCON.2

IT1

External interrupt 1 signal is used in level detect mode when this bit is "0", and in

trigger detect mode when "1".

TCON.3

IE1

Interrupt request flag for external interrupt 1.

The bit is reset automatically when an interrupt is serviced.

The bit can be set and reset by software when IT1 = "1".

TCON.4

TR0

Counting start and stop control bit for timer/counter 0.

Timer/counter 0 starts counting when this bit is "1", and stops counitng when "0".

TCON.5

TF0

Interrupt request flag for timer interrupt 0.

The bit is reset automatically when an interrupt is serviced.

The bit is set to "1" when a carry signal is generated from timer/counter 0.

TCON.6

TR1

Counting start and stop control bit for timer/counter 1.

The timer/counter 1 starts counting when this bit is "1", and stops counting when "0".

TCON.7

TF1

Interrupt request flag for timer interrupt 1.

The bit is reset automatically when interrupt is serviced.

The bit is set to "1" when carry signal is generated from timer/counter 1.

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Contents General Description Features¡SemiconductorSemiconductor MSM80C154S/83C154S Cmos 8-bit Microcontroller¡ Semiconductor MSM80C154S/83C154STIMER/COUNTER 0 Interrupt Signal2PORT Address DecoderPin Plastic DIP PIN Configuration TOP ViewPsen Pin Plastic QFP Reset44 P1.4 P1.5 P1.6 P1.7 25 P2.7 24 P2.6 23 P2.5 P2.4Pin Plastic Tqfp 35 EA P3.0/RXD 34 NC 33 ALE P3.1/TXD Pin Plastic QFJXTAL1 XTAL2 19 P3.7/RD 18 P3.6/WR MSM80C154S/83C154S¡ Semiconductor PIN DescriptionsALE XTAL1 ¡ SemiconductorMSM80C154S/83C154SXTAL2 Registers Diagram of Special Function RegistersGate Special Function Registers Timer mode register TmodInterrupt signal Power control register PconCPU is reset Interrupt request flag for external interrupt Timer control register TconTcon TR1 TF0 TR0 IE1 IT1 IE0 IT0REN Serial port control register SconMode Interrupt control bit for serial port Interrupt enable register IEReserved bit. The output data is 1 if the bit is read Overall interrupt control bitInterrupt priority register IP Priority is assigned when bit isPriority interrupt circuit control bit PCT PT2 PT1 PX1 PT0 PX0Bank Control register Iocon When this bit is set toIZC Received at a serial portTimer 2 control register T2CON Program Area Memory MapsBIT RAM HEX 0FF AddressingindirectregisterBANK3 BANK20FFH MSM80C154S/83C154S Diagram of Internal Data Memory RAM2FH 0FHRecommended Operating Conditions Absolute Maximum RatingsDC Characteristics Electrical CharacteristicsPort 0, ALE, Psen Maximum power supply current idle mode ICC mA Maximum power supply current normal operation ICC mALogical 0 Input Current VI=0.1 Logical 1 Output Current Output High Voltage Port 1, 2VO=0.1 Port 1, 2 Logical 1 to 0 Transition 285 Input Measuring circuitsOutput Address Setup Time ALE Signal WidthFalling Edge Psen Signal Width To ALE Falling Edge Address Hold TimePORT0 External program memory read cycleInstr External data memory access AC characteristics External data memory write cycle External data memory read cycleParameter Symbol Min Max Unit Serial port I/O Extension Mode AC characteristicsInput Data ALE Shift ClockExternal Oscillator Signal AC Characteristics Measuring ConditionsXTAL1 external clock input waveform conditions External Clock Drive Waveform294 Basictiming TimingDiagram