PIC18F6621-I/PT Microchip Technology Inc., PIC18F6621-I/PT Datasheet - Page 131

• Manufacturer Part Number: PIC18F6621-I/PT
• Description: 64 PIN, 64 KB FLASH, 3840 RAM, 52 I/O
• Manufacturer: Microchip Technology Inc.

Specifications of PIC18F6621-I/PT

• A/d Inputs: 12-Channel, 10-Bit
• Comparators: 2
• Cpu Speed: 10 MIPS
• Eeprom Memory: 1024 Bytes
• Input Output: 54
• Interface: I2C/SPI/UART/USART
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 64-pin TQFP
• Programmable Memory: 64K Bytes
• Ram Size: 3.8K Bytes
• Speed: 40 MHz
• Timers: 2-8-bit, 3-16-bit
• Voltage, Range: 2-5.5 V
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

REGISTER 10-1:
FIGURE 10-25:
 2005 Microchip Technology Inc.
PORTD<7:0>
PSPIF
bit 7
bit 6
bit 5
bit 4
bit 3-0
OBF
CS
WR
RD
IBF
PSPCON: PARALLEL SLAVE PORT CONTROL REGISTER
PARALLEL SLAVE PORT WRITE WAVEFORMS
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
1 = A write occurred when a previously input word has not been read
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’
Legend:
R = Readable bit
-n = Value at POR
bit 7
Q1
Note 1: Enabled only in Microcontroller mode for PIC18F8525/8621 devices.
R-0
IBF
(must be cleared in software)
Q2
OBF
R-0
Q3
PIC18F6525/6621/8525/8621
Q4
R/W-0
IBOV
W = Writable bit
‘1’ = Bit is set
Q1
PSPMODE
R/W-0
Q2
Q3
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
U-0
—
Q4
U-0
Q1
—
(1)
Q2
x = Bit is unknown
U-0
DS39612B-page 129
—
Q3
Q4
U-0
—
bit 0