ADUC824 Analog Devices, ADUC824 Datasheet - Page 53

• Manufacturer Part Number: ADUC824
• Description: Precision Analog Microcontroller: 1MIPS 8052 MCU + 8kB Flash + 16/24-Bit ADC + 12-Bit DAC
• Manufacturer: Analog Devices

Specifications of ADUC824

• Mcu Core: 8052
• Mcu Speed (mips): 1
• Sram (bytes): 256Bytes
• Gpio Pins: 34
• Adc # Channels: 4

TCON
SFR Address
Power-On Default Value
Bit Addressable
Bit
7
6
5
4
3
2
1
0
Timer/Counter 0 and 1 Data Registers
Each timer consists of two 8-bit registers. These can be used as independent registers or combined to be a single 16-bit register
depending on the timer mode configuration.
TH0 and TL0
Timer 0 high byte and low byte.
SFR Address = 8Chex, 8Ahex respectively.
TH1 and TL1
Timer 1 high byte and low byte.
SFR Address = 8Dhex, 8Bhex respectively.
These bits are not used in the control of timer/counter 0 and 1, but are used instead in the control and monitoring of the external INT0 and INT1 interrupt pins.
T
F
1
Name
TF1
TR1
TF0
TR0
IE1
IT1
IE0
IT0
T
R
1
Timer/Counter 0 and 1 Control Register
88H
00H
Yes
Description
Timer 1 Overflow Flag
Set by hardware on a timer/counter 1 overflow.
Cleared by hardware when the Program Counter (PC) vectors to the interrupt service routine.
Timer 1 Run Control Bit
Set by user to turn on timer/counter 1.
Cleared by user to turn off timer/counter 1.
Timer 0 Overflow Flag
Set by hardware on a timer/counter 0 overflow.
Cleared by hardware when the PC vectors to the interrupt service routine.
Timer 0 Run Control Bit
Set by user to turn on timer/counter 0.
Cleared by user to turn off timer/counter 0.
External Interrupt 1 (INT1) Flag
Set by hardware by a falling edge or zero level being applied to external interrupt pin INT1, depending
on bit IT1 state.
Cleared by hardware when the when the PC vectors to the interrupt service routine only if the interrupt
was transition-activated. If level-activated, the external requesting source controls the request flag,
rather than the on-chip hardware.
External Interrupt 1 (IE1) Trigger Type
Set by software to specify edge-sensitive detection (i.e., 1-to-0 transition).
Cleared by software to specify level-sensitive detection (i.e., zero level).
External Interrupt 0 (INT0) Flag
Set by hardware by a falling edge or zero level being applied to external interrupt pin INT0, depending
on bit IT0 state.
Cleared by hardware when the PC vectors to the interrupt service routine only if the interrupt was
transition-activated. If level-activated, the external requesting source controls the request flag,
rather than the on-chip hardware.
External Interrupt 0 (IE0) Trigger Type
Set by software to specify edge-sensitive detection (i.e., 1-to-0 transition).
Cleared by software to specify level-sensitive detection (i.e., zero level).
T
F
0
Table XXIV. TCON SFR Bit Designations
T
R
0
I
E
1
I
T
1
I
E
0
ADuC824
I
T
0