MC9S08GT16CFB Freescale Semiconductor, MC9S08GT16CFB Datasheet - Page 162

• Manufacturer Part Number: MC9S08GT16CFB
• Manufacturer: Freescale Semiconductor

Specifications of MC9S08GT16CFB

• Cpu Family: HCS08
• Device Core Size: 8b
• Frequency (max): 20MHz
• Interface Type: SCI/SPI
• Program Memory Type: Flash
• Program Memory Size: 16KB
• Total Internal Ram Size: 1KB
• # I/os (max): 36
• Number Of Timers - General Purpose: 4
• Operating Supply Voltage (typ): 2.5/3.3V
• Operating Supply Voltage (max): 3.6V
• Operating Supply Voltage (min): 2.08V
• On-chip Adc: 8-chx10-bit
• Instruction Set Architecture: CISC
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 44
• Package Type: PQFP
• Lead Free Status / Rohs Status: Not Compliant

Timer/PWM (TPM) Module
PS2:PS1:PS0 — Prescale Divisor Select
10.7.2
The two read-only TPM counter registers contain the high and low bytes of the value in the TPM counter.
Reading either byte (TPMxCNTH or TPMxCNTL) latches the contents of both bytes into a buffer where
they remain latched until the other byte is read. This allows coherent 16-bit reads in either order. The
coherency mechanism is automatically restarted by an MCU reset, a write of any value to TPMxCNTH or
TPMxCNTL, or any write to the timer status/control register (TPMxSC).
Reset clears the TPM counter registers.
162
This 3-bit field selects one of eight divisors for the TPM clock input as shown in
prescaler is located after any clock source synchronization or clock source selection, so it affects
whatever clock source is selected to drive the TPM system.
Timer x Counter Registers (TPMxCNTH:TPMxCNTL)
Reset:
Reset:
Read:
Write:
Read:
Write:
PS2:PS1:PS0
Figure 10-6. Timer x Counter Register High (TPMxCNTH)
Figure 10-7. Timer x Counter Register Low (TPMxCNTL)
0:0:0
0:0:1
0:1:0
0:1:1
1:0:0
1:0:1
1:1:0
1:1:1
Bit 15
Bit 7
Bit 7
Bit 7
0
0
Table 10-2. Prescale Divisor Selection
MC9S08GB/GT Data Sheet, Rev. 2.3
14
6
0
6
6
0
Any write to TPMxCNTH clears the 16-bit counter.
Any write to TPMxCNTL clears the 16-bit counter.
13
5
0
5
5
0
TPM Clock Source Divided-By
12
4
0
4
4
0
128
11
16
32
64
3
0
3
3
0
1
2
4
8
10
2
0
2
2
0
Freescale Semiconductor
1
9
0
1
1
0
Table
10-2. This
Bit 0
Bit 8
Bit 0
Bit 0
0
0