MC9S08RE16FDER Freescale Semiconductor, MC9S08RE16FDER Datasheet - Page 141
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MC9S08RE16FDER
Manufacturer Part Number
MC9S08RE16FDER
Description
IC MCU 16K FLASH 1K RAM 48-QFN
Manufacturer
Freescale Semiconductor
Series
HCS08r
Specifications of MC9S08RE16FDER
Core Processor
HCS08
Core Size
8-Bit
Speed
8MHz
Connectivity
SCI
Peripherals
LVD, POR, PWM, WDT
Number Of I /o
39
Program Memory Size
16KB (16K x 8)
Program Memory Type
FLASH
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 3.6 V
Oscillator Type
Internal
Operating Temperature
0°C ~ 70°C
Package / Case
48-QFN
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Data Converters
-
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When background mode is active, the timer counter and the coherency mechanism are frozen such that the
buffer latches remain in the state they were in when the background mode became active even if one or
both bytes of the counter are read while background mode is active.
10.7.3
The read/write TPM modulo registers contain the modulo value for the TPM counter. After the TPM
counter reaches the modulo value, the TPM counter resumes counting from $0000 at the next clock
(CPWMS = 0) or starts counting down (CPWMS = 1), and the overflow flag (TOF) becomes set. Writing
to TPM1MODH or TPM1MODL inhibits the TOF bit and overflow interrupts until the other byte is
written. Reset sets the TPM counter modulo registers to $0000, which results in a free-running timer
counter (modulo disabled).
It is good practice to wait for an overflow interrupt so both bytes of the modulo register can be written well
before a new overflow. An alternative approach is to reset the TPM counter before writing to the TPM
modulo registers to avoid confusion about when the first counter overflow will occur.
Freescale Semiconductor
Reset
Reset
W
W
R
R
Bit 15
Timer Counter Modulo Registers (TPM1MODH:TPM1MODL)
Bit 7
0
0
7
7
Figure 10-8. Timer Counter Modulo Register High (TPM1MODH)
Figure 10-9. Timer Counter Modulo Register Low (TPM1MODL)
14
0
6
0
6
6
MC9S08RC/RD/RE/RG Data Sheet, Rev. 1.11
13
0
5
0
5
5
12
0
4
0
4
4
11
3
0
3
3
0
10
0
2
0
2
2
9
0
1
0
1
1
Timer/PWM (TPM)
Bit 8
Bit 0
0
0
0
0
141
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