Datasheet
2011-2013 Microchip Technology Inc. DS70657G-page 317
dsPIC33EPXXXGP50X, dsPIC33EPXXXMC20X/50X AND PIC24EPXXXGP/MC20X
REGISTER 22-3: CTMUICON: CTMU CURRENT CONTROL REGISTER
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
ITRIM<5:0> IRNG<1:0>
bit 15 bit 8
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
bit 7 bit 0
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 15-10 ITRIM<5:0>: Current Source Trim bits
011111 = Maximum positive change from nominal current + 62%
011110 = Maximum positive change from nominal current + 60%
•
•
•
000010 = Minimum positive change from nominal current + 4%
000001 = Minimum positive change from nominal current + 2%
000000 = Nominal current output specified by IRNG<1:0>
111111 = Minimum negative change from nominal current – 2%
111110 = Minimum negative change from nominal current – 4%
•
•
•
100010 = Maximum negative change from nominal current – 60%
100001 = Maximum negative change from nominal current – 62%
bit 9-8 IRNG<1:0>: Current Source Range Select bits
11 = 100 Base Current
(2)
10 = 10 Base Current
(2)
01 = Base Current Level
(2)
00 = 1000 Base Current
(1,2)
bit 7-0 Unimplemented: Read as ‘0’
Note 1: This current range is not available to be used with the internal temperature measurement diode.
2: Refer to the CTMU Current Source Specifications (Table 30-56) in Section 30.0 “Electrical
Characteristics” for the current range selection values.