MC9S08RD32CDWE Freescale Semiconductor, MC9S08RD32CDWE Datasheet - Page 140

• Manufacturer Part Number: MC9S08RD32CDWE
• Description: IC MCU 32K FLASH 2K RAM 28-SOIC
• Manufacturer: Freescale Semiconductor
• Series: HCS08r

Specifications of MC9S08RD32CDWE

• Core Processor: HCS08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SCI
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 23
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 3.6 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-SOIC (7.5mm Width)
• Processor Series: S08RD
• Core: HCS08
• Data Bus Width: 8 bit
• Data Ram Size: 2 KB
• Interface Type: SCI
• Maximum Clock Frequency: 8 MHz
• Number Of Programmable I/os: 39
• Number Of Timers: 2
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: EWS08
• Development Tools By Supplier: DEMO9S08RG60E
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: Details

Timer/PWM (TPM)
1. The maximum frequency that is allowed as an external clock is one-fourth of the bus frequency.
2. When the TPM1CH0 pin is selected as the TPM clock source, the corresponding ELS0B:ELS0A control bits should be set to
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 (TPM1CNTH or TPM1CNTL) 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 TPM1CNTH or
TPM1CNTL, or any write to the timer status/control register (TPM1SC).
Reset clears the TPM counter registers.
140
0:0 so channel 0 does not try to use the same pin for a conflicting function.
Reset
Reset
W
W
R
R
Bit 15
Timer Counter Registers (TPM1CNTH:TPM1CNTL)
Bit 7
0
0
7
7
CLKSB:CLKSA
PS2:PS1:PS0
0:0:0
0:0:1
0:1:0
0:1:1
1:0:0
1:0:1
1:1:0
1:1:1
0:0
0:1
1:0
1:1
14
Figure 10-6. Timer Counter Register High (TPM1CNTH)
0
6
0
6
6
Figure 10-7. Timer Counter Register Low (TPM1CNTL)
MC9S08RC/RD/RE/RG Data Sheet, Rev. 1.11
Table 10-2. TPM Clock Source Selection
Table 10-3. Prescale Divisor Selection
Any write to TPM1CNTH clears the 16-bit counter.
Any write to TPM1CNTL clears the 16-bit counter.
13
0
5
0
5
5
12
0
4
0
4
4
No clock selected (TPM disabled)
Bus rate clock (BUSCLK)
Fixed system clock (XCLK)
External source (TPM1 Ext Clk)
11
TPM Clock Source to Prescaler Input
3
0
3
3
0
TPM Clock Source Divided-By
10
0
2
0
2
2
128
16
32
64
1
2
4
8
1
,
2
Freescale Semiconductor
9
0
1
0
1
1
Bit 8
Bit 0
0
0
0
0