ADUC843 Analog Devices, ADUC843 Datasheet - Page 61

• Manufacturer Part Number: ADUC843
• Description: Precision Analog Microcontroller: 16MIPS 8052 Flash MCU + 8-Ch 12-Bit ADC
• Manufacturer: Analog Devices

Specifications of ADUC843

• Mcu Core: 8052
• Mcu Speed (mips): 16
• Sram (bytes): 2304Bytes
• Gpio Pins: 34
• Adc # Channels: 8
• Other: PWM

TCON
SFR Address
Power-On Default
Bit Addressable
Table 29. TCON SFR Bit Designations
Bit No.
7
6
5
4
3
2
1
0
1
Timer/Counter 0 and 1 Data Registers
Each timer consists of two 8-bit registers. These can be used as
independent registers or combined into a single 16-bit register
depending on the timer mode configuration.
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.
Name
TF1
TR1
TF0
TR0
IE1
IT1
IE0
IT0
1
1
1
1
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 the user to turn on Timer/Counter 1.
Cleared by the 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 the user to turn on Timer/Counter 0.
Cleared by the user to turn off Timer/Counter 0.
External Interrupt 1 (INT1) Flag.
Set by hardware by a falling edge or by a zero level being applied to the external interrupt pin, INT1, depending on
the state of Bit IT1.
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 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 by a zero level being applied to external interrupt pin INT0, depending on the
state of Bit IT0.
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.
Timer/Counter 0 and 1
Control Register
88H
00H
Yes
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TH0 and TL0
Timer 0 high byte and low byte.
SFR Address = 8CH 8AH, respectively.
TH1 and TL1
Timer 1 high byte and low byte.
SFR Address = 8DH, 8BH, respectively.
ADuC841/ADuC842/ADuC843