MC68HC711E20CFN2 Freescale Semiconductor, MC68HC711E20CFN2 Datasheet - Page 193

• Manufacturer Part Number: MC68HC711E20CFN2
• Description: IC MCU 20K 2MHZ OTP 52-PLCC
• Manufacturer: Freescale Semiconductor
• Series: HC11r

Specifications of MC68HC711E20CFN2

• Core Processor: HC11
• Core Size: 8-Bit
• Speed: 2MHz
• Connectivity: SCI, SPI
• Peripherals: POR, WDT
• Number Of I /o: 38
• Program Memory Size: 20KB (20K x 8)
• Program Memory Type: OTP
• Eeprom Size: 512 x 8
• Ram Size: 768 x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 8x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 52-PLCC
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

9.5.5 Timer Counter Register
M68HC11E Family — Rev. 3.2
MOTOROLA
Register name: Timer Counter Register (High)
Register name: Timer Counter Register (Low)
The 16-bit read-only TCNT register contains the prescaled value of the
16-bit timer. A full counter read addresses the most significant byte
(MSB) first. A read of this address causes the least significant byte (LSB)
to be latched into a buffer for the next CPU cycle so that a double-byte
read returns the full 16-bit state of the counter at the time of the MSB
read cycle.
Reset:
Reset:
Read:
Read:
Write:
Write:
Bit 15
Bit 7
Bit 7
Bit 7
0
0
Figure 9-15. Timer Counter Register (TCNT)
= Unimplemented
Bit 14
Bit 6
Timing System
6
0
6
0
Bit 13
Bit 5
5
0
5
0
Address: $100F
Bit 12
Address: $100E
Bit 4
4
0
4
0
Bit 11
Bit 3
3
0
3
0
Bit 10
Bit 2
2
0
2
0
Output Compare
Bit 9
Bit 1
1
0
1
0
Timing System
Technical Data
Bit 0
Bit 8
Bit 0
Bit 0
0
0
193