ADUC824BS Analog Devices Inc, ADUC824BS Datasheet - Page 52

• Manufacturer Part Number: ADUC824BS
• Description: IC MCU 8K FLASH ADC/DAC 52MQFP
• Manufacturer: Analog Devices Inc
• Series: MicroConverter® ADuC8xxr

Specifications of ADUC824BS

• Core Processor: 8052
• Core Size: 8-Bit
• Speed: 12.58MHz
• Connectivity: EBI/EMI, I²C, SPI, UART/USART
• Peripherals: POR, PSM, Temp Sensor, WDT
• Number Of I /o: 34
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 640 x 8
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.25 V
• Data Converters: A/D 3x16b, 4x24b; D/A 1x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 52-MQFP, 52-PQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

ADuC824
User configuration and control of all Timer operating modes is achieved via three SFRs namely:
TMOD, TCON:
T2CON:
TMOD
SFR Address
Power-On Default Value
Bit Addressable
Bit
7
6
5
4
3
2
1
0
G
a
e t
Name
Gate
C/T
M1
M0
Gate
C/T
M1
M0
C T
/
Control and configuration for Timers 0 and 1.
Control and configuration for Timer 2.
Timer/Counter 0 and 1 Mode Register
89H
00H
No
Description
Timer 1 Gating Control
Set by software to enable timer/counter 1 only while INT1 pin is high and TR1 control bit is set.
Cleared by software to enable timer 1 whenever TR1 control bit is set.
Timer 1 Timer or Counter Select Bit
Set by software to select counter operation (input from T1 pin).
Cleared by software to select timer operation (input from internal system clock).
Timer 1 Mode Select Bit 1 (Used with M0 Bit)
Timer 1 Mode Select Bit 0
M1
0
0
1
1
Timer 0 Gating Control
Set by software to enable timer/counter 0 only while INT0 pin is high and TR0 control bit is set.
Cleared by software to enable Timer 0 whenever TR0 control bit is set.
Timer 0 Timer or Counter Select Bit
Set by software to select counter operation (input from T0 pin).
Cleared by software to select timer operation (input from internal system clock).
Timer 0 Mode Select Bit 1
Timer 0 Mode Select Bit 0
M1
0
0
1
1
M
1
Table XXIII. TMOD SFR Bit Designations
M0
0
1
0
1
M0
0
1
0
1
M
0
TH1 operates as an 8-bit timer/counter. TL1 serves as 5-bit prescaler.
16-Bit Timer/Counter. TH1 and TL1 are cascaded; there is no prescaler.
8-Bit Auto-Reload Timer/Counter. TH1 holds a value which is to be
reloaded into TL1 each time it overflows.
Timer/Counter 1 Stopped.
TH0 operates as an 8-bit timer/counter. TL0 serves as 5-bit prescaler.
16-Bit Timer/Counter. TH0 and TL0 are cascaded; there is no prescaler.
8-Bit Auto-Reload Timer/Counter. TH0 holds a value which is to be
reloaded into TL0 each time it overflows.
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.
G
a
e t
C T
/
M
1
M
0