AT89C51CC01 Atmel Corporation, AT89C51CC01 Datasheet - Page 17
AT89C51CC01
Manufacturer Part Number
AT89C51CC01
Description
Manufacturer
Atmel Corporation
Datasheets
1.AT89C51CC01.pdf
(167 pages)
2.AT89C51CC01.pdf
(12 pages)
3.AT89C51CC01.pdf
(32 pages)
4.AT89C51CC01.pdf
(29 pages)
Specifications of AT89C51CC01
Flash (kbytes)
32 Kbytes
Max. Operating Frequency
40 MHz
Cpu
8051-12C
Max I/o Pins
34
Uart
1
Can
1
Adc Channels
8
Adc Resolution (bits)
10
Adc Speed (ksps)
62.5
Sram (kbytes)
1.25
Eeprom (bytes)
2048
Self Program Memory
API
Operating Voltage (vcc)
3.0 to 5.5
Timers
4
Isp
UART/CAN
Watchdog
Yes
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Register
4129N–CAN–03/08
Table 12. CKCON Register
CKCON (S:8Fh)
Clock Control Register
Note:
Reset Value = 0000 0000b
Number
CANX2
Bit
7
7
6
5
4
3
2
1
0
1. This control bit is validated when the CPU clock bit X2 is set; when X2 is low, this bit
has no effect.
Mnemonic Description
WDX2
CANX2
PCAX2
WDX2
T2X2
T1X2
T0X2
SIX2
Bit
X2
6
CAN clock
Clear to select 6 clock periods per peripheral clock cycle.
Set to select 12 clock periods per peripheral clock cycle.
Watchdog clock
Clear to select 6 clock periods per peripheral clock cycle.
Set to select 12 clock periods per peripheral clock cycle.
Programmable Counter Array clock
Clear to select 6 clock periods per peripheral clock cycle.
Set to select 12 clock periods per peripheral clock cycle.
Enhanced UART clock (MODE 0 and 2)
Clear to select 6 clock periods per peripheral clock cycle.
Set to select 12 clock periods per peripheral clock cycle.
Timer 2 clock
Clear to select 6 clock periods per peripheral clock cycle.
Set to select 12 clock periods per peripheral clock cycle.
Timer 1 clock
Clear to select 6 clock periods per peripheral clock cycle.
Set to select 12 clock periods per peripheral clock cycle.
Timer 0 clock
Clear to select 6 clock periods per peripheral clock cycle.
Set to select 12 clock periods per peripheral clock cycle.
CPU clock
Clear to select 12 clock periods per machine cycle (STD mode) for CPU and all
the peripherals.
Set to select 6 clock periods per machine cycle (X2 mode) and to enable the
individual peripherals "X2"bits.
PCAX2
5
(1)
(1)
(1)
(1)
SIX2
(1)
4
T2X2
3
(1)
(1)
T1X2
2
T0X2
1
X2
0
17