PIC16C74B-20I/L Microchip Technology Inc., PIC16C74B-20I/L Datasheet - Page 36

• Manufacturer Part Number: PIC16C74B-20I/L
• Description: 44 PIN, 7 KB OTP, 192 RAM, 33 I/O
• Manufacturer: Microchip Technology Inc.

Specifications of PIC16C74B-20I/L

• A/d Inputs: 8-Channel, 8-Bit
• Cpu Speed: 5 MIPS
• Eeprom Memory: 0 Bytes
• Input Output: 33
• Interface: I2C/SPI/USART
• Memory Type: OTP
• Number Of Bits: 8
• Package Type: 44-pin PLCC
• Programmable Memory: 7K Bytes
• Ram Size: 192 Bytes
• Speed: 4 MHz
• Timers: 2-8-bit, 1-16-bit
• Voltage, Range: 2.5-5.5 V
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

PIC16C63A/65B/73B/74B
REGISTER 5-1:
TABLE 5-10:
DS30605C-page 36
Address
09h
89h
9Fh
Legend: x = unknown, u = unchanged, - = unimplemented, read as '0'. Shaded cells are not used by PORTE.
PORTE
TRISE
ADCON1
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
Name
SUMMARY OF REGISTERS ASSOCIATED WITH PORTE
Bit 7
IBF
TRISE REGISTER (ADDRESS 89h)
—
—
IBF: Input Buffer Full Status bit
1 = A word has been received and is waiting to be read by the CPU
0 = No word has been received
OBF: Output Buffer Full Status bit
1 = The output buffer still holds a previously written word
0 = The output buffer has been read
IBOV: Input Buffer Overflow Detect bit (in Microprocessor mode)
1 = A write occurred when a previously input word has not been read (must be cleared in
0 = No overflow occurred
PSPMODE: Parallel Slave Port Mode Select bit
1 = Parallel Slave Port mode
0 = General purpose I/O mode
Unimplemented: Read as '0'
TRISE2: Direction Control bit for pin RE2/CS/AN7
1 = Input
0 = Output
TRISE1: Direction Control bit for pin RE1/WR/AN6
1 = Input
0 = Output
TRISE0: Direction Control bit for pin RE0/RD/AN5
1 = Input
0 = Output
bit 7
Legend:
R = Readable bit
-n = Value at POR
R-0
IBF
software)
Bit 6
OBF
—
—
IBOV
Bit 5
OBF
—
—
R-0
PSPMODE
Bit 4
—
—
R/W-0
IBOV
W = Writable bit
’1’ = Bit is set
Bit 3
—
—
—
PSPMODE
R/W-0
PORTE Data Direction bits
PCFG2
Bit 2
RE2
U = Unimplemented bit, read as ‘0’
’0’ = Bit is cleared
PCFG1
Bit 1
RE1
U-0
—
PCFG0
Bit 0
RE0
TRISE2
R/W-1
2000 Microchip Technology Inc.
---- -xxx
0000 -111
---- -000
Value on:
POR,
BOR
x = Bit is unknown
TRISE1
R/W-1
---- -uuu
0000 -111
---- -000
Value on
all other
RESETS
TRISE0
R/W-1
bit 0