MC68HC711E9CFN3 Freescale Semiconductor, MC68HC711E9CFN3 Datasheet - Page 84

• Manufacturer Part Number: MC68HC711E9CFN3
• Description: IC MCU 3MHZ 12K OTP 52-PLCC
• Manufacturer: Freescale Semiconductor
• Series: HC11r

Specifications of MC68HC711E9CFN3

• Core Processor: HC11
• Core Size: 8-Bit
• Speed: 3MHz
• Connectivity: SCI, SPI
• Peripherals: POR, WDT
• Number Of I /o: 38
• Program Memory Size: 12KB (12K x 8)
• Program Memory Type: OTP
• Eeprom Size: 512 x 8
• Ram Size: 512 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

Operating Modes and On-Chip Memory
Technical Data
84
IRV(NE) — Internal Read Visibility (Not E) Bit
PSEL[3:0] — Priority Select Bits
Special test
Single chip
Expanded
Bootstrap
IRVNE can be written once in any mode. In expanded modes, IRVNE
determines whether IRV is on or off. In special test mode, IRVNE is
reset to 1. In all other modes, IRVNE is reset to 0. For the
MC68HC811E2, this bit is IRV and only controls the internal read
visibility function.
In single-chip modes this bit determines whether the E clock drives
out from the chip. For the MC68HC811E2, this bit has no meaning or
effect in single-chip and bootstrap modes.
Refer to
Mode
0 = No internal read visibility on external bus
1 = Data from internal reads is driven out the external data bus.
0 = E is driven out from the chip.
1 = E pin is driven low. Refer to the following table.
Operating Modes and On-Chip Memory
Section 5. Resets and
IRVNE Out
of Reset
0
0
0
1
E Clock Out
of Reset
On
On
On
On
Interrupts.
of Reset
IRV Out
On
Off
Off
Off
M68HC11E Family — Rev. 3.2
Affects Only
IRVNE
IRV
IRV
E
E
IRVNE Can
MOTOROLA
Be Written
Once
Once
Once
Once