PIC14000-04 Microchip Technology, PIC14000-04 Datasheet - Page 43

• Manufacturer Part Number: PIC14000-04
• Description: 28-Pin Programmable Mixed Signal Controller
• Manufacturer: Microchip Technology

FIGURE 7-3:
bit7
1996 Microchip Technology Inc.
WCOL
R/W
I
2
R/W
COV
I
2
R/W
CEN
I
2
CCON: I
CKP
R/W
I
2
R/W
CM3
2
C PORT CONTROL REGISTER
I
2
R/W
CM2
I
2
R/W
CM1
I
2
R/W
CM0
Preliminary
bit0
0 = Disables serial port and configures these pins as I/O port pins
1 = Enables the serial port and configures SDA and SCL pins as serial
I
1 = A byte is received while the I
0 = No overflow
I
WCOL: Write collision detect
1 = the I
0 = No collision
2
2
I
CKP: Clock polarity select
SCK release control
1 = Enable clock
0 = Holds clock low (clock stretch)
0110 = I
0111 = I
1011 = I
1110 = I
1111 = I
Any other combinations of I
are illegal and should NEVER be used.
CEN: I
2
COV: Receive overflow flag
CM<3:0>: I
port pins. When enabled, these pins must be configured as input
or output.
byte. I
I
2
ous word.
Must be cleared in software.
Note: Used to ensure data setup time
COV must be cleared in software.
Register:
Address:
POR value:
2
C enable
2
enabled
enabled
2
2
2
2
2
CBUF register is written while it is still transmitting the previ-
2
C slave mode, 7-bit address
C firmware controlled master mode (slave idle)
C slave mode, 10-bit address with start and stop bit interrupts
C slave mode, 10-bit address
C slave mode, 7-bit address with start and stop bit interrupts
COV is a don't care in transmit mode.
2
C mode select
I
2
CCON
14h
00h
2
CM<3:0>
2
CBUF is still holding the previous
W: Writable bit
R: Readable bit
U: Unimplemented, read as ‘0’
PIC14000
DS40122B-page 43