PIC16LC771/P Microchip Technology, PIC16LC771/P Datasheet - Page 43
![IC MCU OTP 4KX14 A/D PWM 20DIP](/photos/12/13/121303/150-20-dip_sml.jpg)
PIC16LC771/P
Manufacturer Part Number
PIC16LC771/P
Description
IC MCU OTP 4KX14 A/D PWM 20DIP
Manufacturer
Microchip Technology
Series
PIC® 16Cr
Specifications of PIC16LC771/P
Core Processor
PIC
Core Size
8-Bit
Speed
20MHz
Connectivity
I²C, SPI
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
15
Program Memory Size
7KB (4K x 14)
Program Memory Type
OTP
Ram Size
256 x 8
Voltage - Supply (vcc/vdd)
2.5 V ~ 5.5 V
Data Converters
A/D 6x12b
Oscillator Type
Internal
Operating Temperature
0°C ~ 70°C
Package / Case
20-DIP (0.300", 7.62mm)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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4.0
Program memory is readable during normal operation
(full V
Special Function Registers:
• PMCON1
• PMDATH
• PMDATL
• PMADRH
• PMADRL
REGISTER 4-1:
4.2
The PMDATH:PMDATL registers are loaded with the
contents of program memory addressed by the
PMADRH and PMADRL registers upon completion of a
Program Memory Read command.
2002 Microchip Technology Inc.
DD
PROGRAM MEMORY READ
(PMR)
PMDATH AND PMDATL
REGISTERS
range). It is indirectly addressed through the
bit 7
bit 6-1
bit 0
PROGRAM MEMORY READ CONTROL REGISTER 1 (PMCON1: 18Ch)
Reserved: Read as ‘1’
Unimplemented: Read as '0'
RD: Read Control bit
1 = Initiates a Program memory read (read takes 2 cycles). RD is cleared in hardware.
0 = Reserved
bit 7
Legend:
R = Readable bit
- n = Value at POR
Reserved
R-1
U-0
—
U-0
—
W = Writable bit
’1’ = Bit is set
U-0
—
When interfacing the program memory block, the
PMDATH & PMDATL registers form a 2-byte word,
which holds the 14-bit data. The PMADRH & PMADRL
registers form a 2-byte word, which holds the 12-bit
address of the program memory location being
accessed. Mid-range devices have up to 8K words of
program EPROM with an address range from 0h to
3FFFh. When the device contains less memory than
the full address range of the PMADRH:PMARDL regis-
ters, the Most Significant bits of the PMADRH register
are ignored.
4.1
PMCON1 is the control register for program memory
accesses.
Control bit RD initiates a read operation. This bit cannot
be cleared, only set, in software. It is cleared in hard-
ware at completion of the read operation.
PIC16C717/770/771
PMCON1 REGISTER
S = Settable (cleared in hardware)
U = Unimplemented bit, read as ‘0’
’0’ = Bit is cleared
U-0
—
U-0
—
x = Bit is unknown
U-0
—
DS41120B-page 41
R/S-0
RD
bit 0
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