p87lpc778 NXP Semiconductors, p87lpc778 Datasheet - Page 49

• Manufacturer Part Number: p87lpc778
• Description: Cmos Single-chip 8-bit 80c51 Microcontroller 128-byte Data Ram, 8 Kb Otp
• Manufacturer: NXP Semiconductors

Philips Semiconductors
9397 750 12378
Product data
Fig 19. Timer/counter 0 or 1 in Mode 0 (13-bit counter).
Fig 20. Timer/counter 0 or 1 in Mode 1 (16-bit counter).
Fig 21. Timer/counter 0 or 1 in Mode 2 (8-bit auto-reload).
or Osc/12
or Osc/12
or Osc/12
INTn pin
INTn pin
INTn pin
Tn pin
Tn pin
Tn pin
Osc/6
Osc/6
Osc/6
Gate
Gate
Gate
TRn
TRn
TRn
Table 47:
Bit
2
1
0
C/T = 0
C/T = 1
C/T = 0
C/T = 1
C/T = 0
C/T = 1
Symbol
IT1
IE0
IT0
TCON - Timer/counter control register (address 88H) bit description
Rev. 01 — 31 March 2004
control
control
control
Description
Interrupt 1 Type control bit. Set/cleared by software to specify
falling edge/low level triggered external interrupts.
Interrupt 0 Edge flag. Set by hardware when external interrupt 0
edge is detected. Cleared by hardware when the interrupt is
processed, or by software.
Interrupt 0 Type control bit. Set/cleared by software to specify
falling edge/low level triggered external interrupts.
(5-bits)
(8-bits)
(8-bits)
(8-bits)
THn
TLn
TLn
TLn
reload
(8-bits)
(8-bits)
THn
THn
overflow
CMOS single-chip 8-bit microcontroller
toggle
toggle
toggle
overflow
overflow
TFn
TFn
TFn
TnOE
TnOE
Tine
002aaa637
002aaa638
002aaa639
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
interrupt
interrupt
interrupt
P87LPC778
Tn pin
Tn pin
Tn pin
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