Datasheet

PIC32MZ Embedded Connectivity with Floating Point Unit (EF) Family
DS60001320B-page 344 Preliminary  2015 Microchip Technology Inc.
REGISTER 20-13: SQI1STAT2: SQI STATUS REGISTER 2
Bit
Range
Bit
31/23/15/7
Bit
30/22/14/6
Bit
29/21/13/5
Bit
28/20/12/4
Bit
27/19/11/3
Bit
26/18/10/2
Bit
25/17/9/1
Bit
24/16/8/0
31:24
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
23:16
U-0 U-0 U-0 U-0 U-0 U-0 R-0 R-0
— — — — — —CMDSTAT<1:0>
15:8
U-0 U-0 U-0 U-0 R-0 R-0 R-0 R-0
— — — — CONAVAIL<4:1>
7:0
R-0 R-0 R-0 R-0 R-0 U-0 R-0 R-0
CONAVAIL<0> SQID3 SQID2 SQID1 SQID0 — RXUN TXOV
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 31-18 Unimplemented: Read as ‘0’
bit 17-16 CMDSTAT<1:0>: Current Command Status bits
These bits indicate the current command status.
11 = Reserved
10 = Receive
01 = Transmit
00 = Idle
bit 15-12 Unimplemented: Read as ‘0’
bit 11-7 CONAVAIL<4:0>: Control FIFO Space Available bits
These bits indicate the available control Word space.
11111 = 32 bytes are available
11110 = 31 bytes are available
•
•
•
00001 = 1 byte is available
00000 = No bytes are available
bit 6 SQID3: SQID3 Status bit
1 = Data is present on SQID3
0 = Data is not present on SQID3
bit 5 SQID2: SQID2 Status bit
1 = Data is present on SQID2
0 = Data is not present on SQID2
bit 4 SQID1: SQID1 Status bit
1 = Data is present on SQID1
0 = Data is not present on SQID1
bit 3 SQID0: SQID0 Status bit
1 = Data is present on SQID0
0 = Data is not present on SQID0
bit 2 Unimplemented: Read as ‘0’
bit 1 RXUN: Receive FIFO Underflow Status bit
1 = Receive FIFO Underflow has occurred
0 = Receive FIFO underflow has not occurred
bit 0 TXOV: Transmit FIFO Overflow Status bit
1 = Transmit FIFO overflow has occurred
0 = Transmit FIFO overflow has not occurred