MC68HC908JB8JPE Freescale Semiconductor, MC68HC908JB8JPE Datasheet - Page 192

• Manufacturer Part Number: MC68HC908JB8JPE
• Description: IC MCU FLASH 8BIT 8K 20-DIP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908JB8JPE

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 3MHz
• Connectivity: USB
• Peripherals: LVD, POR, PWM
• Number Of I /o: 13
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 20-DIP (0.300", 7.62mm)
• Controller Family/series: HC08
• No. Of I/o's: 13
• Ram Memory Size: 256Byte
• Cpu Speed: 3MHz
• No. Of Timers: 1
• Embedded Interface Type: USB
• Rohs Compliant: Yes
• Processor Series: HC08JB
• Core: HC08
• Data Bus Width: 8 bit
• Data Ram Size: 256 B
• Interface Type: USB
• Maximum Clock Frequency: 3 MHz
• Number Of Programmable I/os: 37
• Number Of Timers: 2
• Operating Supply Voltage: 4 V to 5.5 V
• Maximum Operating Temperature: + 70 C
• Mounting Style: Through Hole
• Development Tools By Supplier: FSICEBASE, DEMO908GZ60E, M68EML08GZE, KITUSBSPIDGLEVME, KITUSBSPIEVME, KIT33810EKEVME
• Minimum Operating Temperature: 0 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: Details

Timer Interface Module (TIM)
11.10.2 TIM Counter Registers
Technical Data
192
NOTE:
TCNTH
TCNTL
The two read-only TIM counter registers contain the high and low bytes
of the value in the TIM counter. Reading the high byte (TCNTH) latches
the contents of the low byte (TCNTL) into a buffer. Subsequent reads of
TCNTH do not affect the latched TCNTL value until TCNTL is read.
Reset clears the TIM counter registers. Setting the TIM reset bit (TRST)
also clears the TIM counter registers.
If you read TCNTH during a break interrupt, be sure to unlatch TCNTL
by reading TCNTL before exiting the break interrupt. Otherwise, TCNTL
retains the value latched during the break.
Reset:
Reset:
Read:
Read:
Write:
Write:
Figure 11-5. TIM Counter Registers (TCNTH:TCNTL)
Address: $000C
Address: $000D
Bit 15
Bit 7
Bit 7
Bit 7
0
0
Timer Interface Module (TIM)
= Unimplemented
Bit 14
Bit 6
6
0
6
0
MC68HC908JB8•MC68HC08JB8•MC68HC08JT8 — Rev. 2.3
Bit 13
Bit 5
5
0
5
0
Bit 12
Bit 4
4
0
4
0
Bit 11
Bit 3
3
0
3
0
Bit 10
Bit 2
Freescale Semiconductor
2
0
2
0
Bit 9
Bit 1
1
0
1
0
Bit 0
Bit 8
Bit 0
Bit 0
0
0