MC9S12XDP512CAL Freescale, MC9S12XDP512CAL Datasheet - Page 321

• Manufacturer Part Number: MC9S12XDP512CAL
• Manufacturer: Freescale

Specifications of MC9S12XDP512CAL

• Cpu Family: HCS12
• Device Core Size: 16b
• Frequency (max): 40MHz
• Interface Type: CAN/I2C/SCI/SPI
• Total Internal Ram Size: 32KB
• # I/os (max): 91
• Number Of Timers - General Purpose: 12
• Operating Supply Voltage (typ): 2.5/5V
• Operating Supply Voltage (max): 2.75/5.5V
• Operating Supply Voltage (min): 2.35/3.15V
• On-chip Adc: 2(16-chx10-bit)
• Instruction Set Architecture: CISC
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 112
• Package Type: LQFP
• Program Memory Type: Flash
• Program Memory Size: 512KB
• Lead Free Status / RoHS Status: Compliant

7.3.2.5
Read: Anytime
Write: Has no meaning or effect
All bits reset to zero.
Freescale Semiconductor
TCNT[15:0]
Reset
Reset
Field
15:0
W
W
R
R
TCNT15
TCNT7
Timer Counter Bits — The 16-bit main timer is an up counter. A read to this register will return the current value
of the counter.
Note: A separate read/write for high byte and low byte in test mode will give a different result than accessing them
Timer Count Register (TCNT)
15
0
0
7
as a word. The period of the first count after a write to the TCNT registers may be a different size because
the write is not synchronized with the prescaler clock.
TCNT14
TCNT6
14
0
0
6
Access to the counter register will take place in one clock cycle.
Figure 7-7. Timer Count Register High (TCNT)
Figure 7-8. Timer Count Register Low (TCNT)
TCNT13
Table 7-6. TCNT Field Descriptions
TCNT5
MC9S12XDP512 Data Sheet, Rev. 2.21
13
0
0
5
TCNT12
TCNT4
12
0
0
4
Description
TCNT11
TCNT3
11
Chapter 7 Enhanced Capture Timer (S12ECT16B8CV2)
0
0
3
TCNT10
TCNT2
10
0
0
2
TCNT9
TCNT1
0
0
9
1
TCNT8
TCNT0
0
0
8
0
321