Datasheet
2010-2012 Microchip Technology Inc. DS41452C-page 231
PIC16(L)F1516/7/8/9
REGISTER 21-5: SSPMSK: SSP MASK REGISTER
R/W-1/1 R/W-1/1 R/W-1/1 R/W-1/1 R/W-1/1 R/W-1/1 R/W-1/1 R/W-1/1
MSK<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
u = Bit is unchanged x = Bit is unknown -n/n = Value at POR and BOR/Value at all other Resets
‘1’ = Bit is set ‘0’ = Bit is cleared
bit 7-1 MSK<7:1>: Mask bits
1 = The received address bit n is compared to SSPADD<n> to detect I
2
C address match
0 = The received address bit n is not used to detect I
2
C address match
bit 0
MSK<0>: Mask bit for I
2
C Slave mode, 10-bit Address
I
2
C Slave mode, 10-bit address (SSPM<3:0> = 0111 or 1111):
1 = The received address bit 0 is compared to SSPADD<0> to detect I
2
C address match
0 = The received address bit 0 is not used to detect I
2
C address match
I
2
C Slave mode, 7-bit address, the bit is ignored
REGISTER 21-6: SSPADD: MSSP ADDRESS AND BAUD RATE REGISTER (I
2
C MODE)
R/W-0/0 R/W-0/0 R/W-0/0 R/W-0/0 R/W-0/0 R/W-0/0 R/W-0/0 R/W-0/0
ADD<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
u = Bit is unchanged x = Bit is unknown -n/n = Value at POR and BOR/Value at all other Resets
‘1’ = Bit is set ‘0’ = Bit is cleared
Master mode:
bit 7-0 ADD<7:0>: Baud Rate Clock Divider bits
SCL pin clock period = ((ADD<7:0> + 1) *4)/F
OSC
10-Bit Slave mode — Most Significant Address Byte:
bit 7-3 Not used: Unused for Most Significant Address byte. Bit state of this register is a “don’t care”. Bit pat-
tern sent by master is fixed by I
2
C specification and must be equal to ‘11110’. However, those bits are
compared by hardware and are not affected by the value in this register.
bit 2-1
ADD<2:1>: Two Most Significant bits of 10-bit address
bit 0
Not used: Unused in this mode. Bit state is a “don’t care”.
10-Bit Slave mode — Least Significant Address Byte:
bit 7-0 ADD<7:0>: Eight Least Significant bits of 10-bit address
7-Bit Slave mode:
bit 7-1 ADD<7:1>: 7-bit address
bit 0
Not used: Unused in this mode. Bit state is a “don’t care”.