PIC16F870T-I/SS Microchip Technology, PIC16F870T-I/SS Datasheet - Page 43

• Manufacturer Part Number: PIC16F870T-I/SS
• Description: IC MCU FLASH 2KX14 EE 28SSOP
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F870T-I/SS

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 22
• Program Memory Size: 3.5KB (2K x 14)
• Program Memory Type: FLASH
• Eeprom Size: 64 x 8
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Data Converters: A/D 5x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-SSOP
• For Use With: I3-DB16F871 - BOARD DAUGHTER ICEPIC3
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

TABLE 4-9:
TABLE 4-10:
 2003 Microchip Technology Inc.
09h
89h
9Fh
Legend:
RE0/RD/AN5
RE1/WR/AN6
RE2/CS/AN7
Legend:
Note 1:
Addr
Name
PORTE
TRISE
ADCON1
Name
x = unknown, u = unchanged, - = unimplemented read as '0'. Shaded cells are not used by PORTE.
ST = Schmitt Trigger input, TTL = TTL input
Input buffers are Schmitt Triggers when in I/O mode and TTL buffers when in Parallel Slave Port mode.
PORTE FUNCTIONS
SUMMARY OF REGISTERS ASSOCIATED WITH PORTE
ADFM
Bit 7
IBF
—
Bit#
bit0
bit1
bit2
Bit 6
OBF
—
—
Buffer Type
ST/TTL
ST/TTL
ST/TTL
IBOV
Bit 5
—
—
(1)
(1)
(1)
PSPMODE
Bit 4
—
—
Input/output port pin or read control input in Parallel Slave Port mode or
analog input:
RD
1 = Not a read operation
0 = Read operation. Reads PORTD register (if chip selected.)
Input/output port pin or write control input in Parallel Slave Port mode
or analog input:
WR
1 = Not a write operation
0 = Write operation. Writes PORTD register (if chip selected).
Input/output port pin or chip select control input in Parallel Slave Port
mode or analog input:
CS
1 = Device is not selected
0 = Device is selected
PCFG3
Bit 3
—
—
PORTE Data Direction Bits
PCFG2
Bit 2
RE2
PCFG1
Bit 1
RE1
Function
PIC16F870/871
PCFG0
Bit 0
RE0
---- -xxx
0000 -111
--0- 0000
POR, BOR
Value on:
DS30569B-page 41
---- -uuu
0000 -111
--0- 0000
Value on
RESETS
all other