AT89LP213 Atmel Corporation, AT89LP213 Datasheet - Page 32
AT89LP213
Manufacturer Part Number
AT89LP213
Description
Manufacturer
Atmel Corporation
Datasheet
1.AT89LP213.pdf
(98 pages)
Specifications of AT89LP213
Flash (kbytes)
2 Kbytes
Max. Operating Frequency
20 MHz
Cpu
8051-1C
Max I/o Pins
14
Spi
1
Sram (kbytes)
0.125
Operating Voltage (vcc)
2.4 to 5.5
Timers
2
Isp
SPI/OCD
Watchdog
Yes
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Table 14-2.
32
Gate
C/T
M1
M0
TMOD = 89H
Not Bit Addressable
AT89LP213/214
Gating control when set. Timer/Counter x is enabled only
while INTx pin is high and TRx control pin is set. When
cleared, Timer x is enabled whenever TRx control bit
is set.
Timer or Counter Selector cleared for Timer operation
(input from internal system clock). Set for Counter
operation (input from Tx input pin).
Timer 1 Mode bit 1
Timer 1 Mode bit 0
M1
0
0
1
1
1
Timer SFR
TCON
TMOD
TL0
TL1
TH0
TH1
TCONB
RL0
RL1
RH0
RH1
TMOD: Timer/Counter Mode Control Register
GATE
7
M0
0
1
0
1
1
C/T
6
Timer1
Mode
0
1
2
3
3
Purpose
Control
Mode
Timer 0 low-byte
Timer 1 low-byte
Timer 0 high-byte
Timer 1 high-byte
Mode
Timer 0 reload low-byte
Timer 1 reload low-byte
Timer 0 reload high-byte
Timer 1 reload high-byte
M1
5
Operating Mode
Variable 9 - 16-bit Timer mode.
8-bit Timer/Counter THx with TLx as 1 - 8-bit prescaler.
16-bit auto-reload mode.
16-bit Timer/Counters THx and TLx are cascaded; there is no prescaler.
8-bit auto reload.
8-bit auto-reload Timer/Counter THx holds a value which is to be
reloaded into TLx each time it overflows.
Split Timer mode.
(Timer 0) TL0 is an 8-bit Timer/Counter controlled by the standard
Timer 0 control bits. TH0 is an 8-bit timer only controlled by Timer 1
control bits.
(Timer 1) Timer/Counter 1 stopped.
M0
4
GATE
3
Address
8AH
8BH
8CH
8DH
88H
89H
91H
92H
93H
94H
95H
Timer 0 gate bit
Timer 0 counter/timer select bit
Timer 0 M1 bit
Timer 0 M0 bit
C/T
2
Timer0
Reset Value = 0000 0000B
M1
Bit-Addressable
1
Yes
No
No
No
No
No
No
No
No
No
No
M0
0
3538E–MICRO–11/10
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