PIC24FJ64GA705 Datasheet, PDF (248/412 Pages) –

PIC24FJ256GA705 FAMILY
REGISTER 20-7: PMCSxMD: EPMP CHIP SELECT x MODE REGISTER
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
U-0
U-0
ACKM1
ACKM0
AMWAIT2 AMWAIT1 AMWAIT0
—
—
bit 15
U-0
—
bit 8
R/W-0
DWAITB1
bit 7
R/W-0
DWAITB0
R/W-0
DWAITM3
R/W-0
DWAITM2
R/W-0
DWAITM1
R/W-0
DWAITM0
R/W-0
DWAITE1
R/W-0
DWAITE0
bit 0
Legend:
R = Readable bit
-n = Value at POR
W = Writable bit
‘1’ = Bit is set
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
x = Bit is unknown
bit 15-14
bit 13-11
bit 10-8
bit 7-6
bit 5-2
bit 1-0
ACKM<1:0>: Chip Select x Acknowledge Mode bits
11 = Reserved
10 = PMACKx is used to determine when a read/write operation is complete
01 = PMACKx is used to determine when a read/write operation is complete with time-out
(If DWAITM<3:0> = 0000, the maximum time-out is 255 TCY or else it is DWAITM<3:0> cycles.)
00 = PMACKx is not used
AMWAIT<2:0>: Chip Select x Alternate Master Wait State bits
111 = Wait of 10 alternate master cycles
...
001 = Wait of 4 alternate master cycles
000 = Wait of 3 alternate master cycles
Unimplemented: Read as ‘0’
DWAITB<1:0>: Chip Select x Data Setup Before Read/Write Strobe Wait State bits
11 = Wait of 3¼ TCY
10 = Wait of 2¼ TCY
01 = Wait of 1¼ TCY
00 = Wait of ¼ TCY
DWAITM<3:0>: Chip Select x Data Read/Write Strobe Wait State bits
For Write Operations:
1111 = Wait of 15½ TCY
...
0001 = Wait of 1½ TCY
0000 = Wait of ½ TCY
For Read Operations:
1111 = Wait of 15¾ TCY
...
0001 = Wait of 1¾ TCY
0000 = Wait of ¾ TCY
DWAITE<1:0>: Chip Select x Data Hold After Read/Write Strobe Wait State bits
For Write Operations:
11 = Wait of 3¼ TCY
10 = Wait of 2¼ TCY
01 = Wait of 1¼ TCY
00 = Wait of ¼ TCY
For Read Operations:
11 = Wait of 3 TCY
10 = Wait of 2 TCY
01 = Wait of 1 TCY
00 = Wait of 0 TCY
DS30010118B-page 248
 2016 Microchip Technology Inc.