MC908MR8MPE Freescale Semiconductor, MC908MR8MPE Datasheet - Page 240

• Manufacturer Part Number: MC908MR8MPE
• Description: IC MCU 8BIT 8K FLASH 28-PDIP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC908MR8MPE

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SCI
• Peripherals: LVD, POR, PWM
• Number Of I /o: 12
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 28-DIP (0.600", 15.24mm)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Timer Interface B (TIMB)
12.10.2 TIMB Counter Registers
Technical Data
240
NOTE:
Register Name and Ad-
dress:
Register Name and Ad-
dress:
The two read-only TIMB counter registers contain the high and low bytes
of the value in the TIMB counter. Reading the high byte (TBCNTH)
latches the contents of the low byte (TBCNTL) into a buffer. Subsequent
reads of TBCNTH do not affect the latched TBCNTL value until TBCNTL
is read. Reset clears the TIMB counter registers. Setting the TIMB reset
bit (TRST) also clears the TIMB counter registers.
If TBCNTH is read during a break interrupt, be sure to unlatch TBCNTL
by reading TBCNTL before exiting the break interrupt. Otherwise,
TBCNTL retains the value latched during the break.
Reset:
Reset:
Read:
Read:
Write:
Write:
Figure 12-5. TIMB Counter Registers (TBCNTH and TBCNTL)
Bit 15
Bit 7
Bit 7
Bit 7
R
R
R
0
0
Timer Interface B (TIMB)
= Reserved
Bit 14
Bit 6
R
R
6
0
6
0
TBCNTH — $0052
TBCNTL — $0053
Bit 13
Bit 5
R
R
5
0
5
0
Bit 12
Bit 4
R
R
4
0
4
0
Bit 11
Bit 3
R
R
3
0
3
0
MC68HC908MR8 — Rev 4.1
Bit 10
Bit 2
Freescale Semiconductor
R
R
2
0
2
0
Bit 9
Bit 1
R
R
1
0
1
0
Bit 0
Bit 8
Bit 0
Bit 0
R
R
0
0