mc9s08gt32a Freescale Semiconductor, Inc, mc9s08gt32a Datasheet - Page 155

• Manufacturer Part Number: mc9s08gt32a
• Description: Hcs08 Microcontrollers 8-bit Microcontroller Family
• Manufacturer: Freescale Semiconductor, Inc

10.3
The TPM uses one input/output (I/O) pin per channel, TPMxCHn where x is the TPM number (for
example, 1 or 2) and n is the channel number (for example, 0–4). The TPM shares its I/O pins with
general-purpose I/O port pins (refer to the
Figure 10-2
numbers of channels.
The central component of the TPM is the 16-bit counter that can operate as a free-running counter, a
modulo counter, or an up-/down-counter when the TPM is configured for center-aligned PWM. The TPM
Freescale Semiconductor
TPM Block Diagram
TPMx) EXT CLK
shows the structure of a TPM. Some MCUs include more than one TPM, with various
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BUSCLK
TPMxMODH:TPMx
XCLK
MAIN 16-BIT COUNTER
TPMxC0VH:TPMxC0VL
TPMxC1VH:TPMxC1VL
TPMxCnVH:TPMxCnVL
16-BIT COMPARATOR
16-BIT COMPARATOR
16-BIT COMPARATOR
16-BIT COMPARATOR
16-BIT LATCH
16-BIT LATCH
16-BIT LATCH
CHANNEL 0
CHANNEL 1
CHANNEL n
SYNC
MC9S08GB60A Data Sheet, Rev. 1.02
Figure 10-2. TPM Block Diagram
COUNTER RESET
OFF, BUS, XCLK, EXT
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ELS1B
ELSnB
MS0B
ELS0B
MSnB
CLOCK SOURCE
Pins and Connections
MS1B
SELECT
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ELS0A
ELS1A
MS0A
ELSnA
MSnA
MS1A
CH0F
CHnF
CH1F
CH0IE
CH1IE
CHnIE
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chapter for more information).
1, 2, 4, 8, 16, 32, 64, or 128
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PRESCALE AND SELECT
DIVIDE BY
Timer/PWM (TPM) Block Description
LOGIC
LOGIC
LOGIC
PORT
PORT
PORT
INTERRUPT
INTERRUPT
INTERRUPT
INTERRUPT
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LOGIC
LOGIC
LOGIC
LOGIC
TPMxCH0
TPMxCH1
TPMxCHn
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