MC68HC11E1CFN3R2 Freescale Semiconductor, MC68HC11E1CFN3R2 Datasheet - Page 49

• Manufacturer Part Number: MC68HC11E1CFN3R2
• Manufacturer: Freescale Semiconductor

Specifications of MC68HC11E1CFN3R2

• Cpu Family: HC11
• Device Core Size: 8b
• Frequency (max): 3MHz
• Interface Type: SCI/SPI
• Program Memory Type: ROMLess
• Program Memory Size: Not Required
• Total Internal Ram Size: 512Byte
• # I/os (max): 38
• Number Of Timers - General Purpose: 8
• Operating Supply Voltage (typ): 3.3/5V
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 3V
• On-chip Adc: 8-chx8-bit
• Instruction Set Architecture: CISC
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 52
• Package Type: PLCC
• Lead Free Status / Rohs Status: Not Compliant

2.4.3 EPROM and EEPROM Programming Control Register
The EPROM and EEPROM programming control register (PPROG) enables the EPROM programming
voltage and controls the latching of data to be programmed.
ODD — Program Odd Rows in Half of EEPROM (Test) Bit
EVEN — Program Even Rows in Half of EEPROM (Test) Bit
ELAT — EPROM/OTPROM Latch Control Bit
BYTE — Byte/Other EEPROM Erase Mode Bit
ROW — Row/All EEPROM Erase Mode Bit
ERASE — Erase Mode Select Bit
EELAT — EEPROM Latch Control Bit
EPGM —EPROM/OTPROM/EEPROM Programming Voltage Enable Bit
Freescale Semiconductor
•
•
Refer to
Refer to
When ELAT = 1, writes to EPROM cause address and data to be latched and the EPROM/OTPROM
cannot be read. ELAT can be read any time. ELAT can be written any time except when EPGM = 1;
then the write to ELAT is disabled.
For the MC68HC711E9:
Refer to
Refer to
Refer to
Refer to
EPGM can be read any time and can be written only when ELAT = 1 (for EPROM/OTPROM
programming) or when EELAT = 1 (for EEPROM programming).
0 = EPROM address and data bus configured for normal reads
1 = EPROM address and data bus configured for programming
0 = Programming voltage to EPROM/OTPROM/EEPROM array disconnected
1 = Programming voltage to EPROM/OTPROM/EEPROM array connected
For MC68HC711E9, PPROG is also the EEPROM programming control register.
For the MC68HC711E20, EPROM programming is controlled by the EPROG register and
EEPROM programming is controlled by the PPROG register.
a. EPGM enables the high voltage necessary for both EEPROM and EPROM/OTPROM
b. ELAT and EELAT are mutually exclusive and cannot both equal 1.
2.5
2.5
2.5
2.5
2.5
2.5
1. MC68HC711E9 only
programming.
Address: $103B
EEPROM.
EEPROM.
EEPROM.
EEPROM.
EEPROM.
EEPROM.
Reset:
Read:
Write:
ODD
Bit 7
0
Figure 2-14. EPROM and EEPROM Programming
EVEN
6
0
M68HC11E Family Data Sheet, Rev. 5.1
Control Register (PPROG)
ELAT
5
0
(1)
BYTE
4
0
ROW
3
0
ERASE
2
0
EELAT
1
0
EPGM
Bit 0
0
EPROM/OTPROM
49