PIC16LF1454 Datasheet, PDF (317/418 Pages) Microchip Technology – 14/20-Pin Flash, 8-Bit USB Microcontrollers with XLP Technology

PIC16(L)F1454/5/9
TABLE 26-3: SUMMARY OF USB BUFFER DESCRIPTOR TABLE REGISTERS
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
BDnSTAT⁽¹⁾
UOWN
DTS⁽⁴⁾
BDnCNT⁽¹⁾
BDnADRL⁽¹⁾
BDnADRH⁽¹⁾
Byte Count
Buffer Address Low
Buffer Address High
PID3⁽²⁾
PID2⁽²⁾
PID1⁽²⁾
PID0⁽²⁾
DTSEN⁽³⁾ BSTALL⁽³⁾
BC9
BC8
Note 1:
2:
3:
4:
For buffer descriptor registers, n may have a value of 0 to 31. For the sake of brevity, all 32 registers are
shown as one generic prototype. All registers have indeterminate Reset values (xxxx xxxx).
Bits <5:2> of the BDnSTAT register are used by the SIE to return PID<3:0> values once the register is
turned over to the SIE (UOWN bit is set). Once the registers have been under SIE control, the values
written for DTSEN and BSTALL are no longer valid.
Prior to turning the buffer descriptor over to the SIE (UOWN bit is cleared), bits 5 through 2 of the
BDnSTAT register are used to configure the DTSEN and BSTALL settings.
This bit is ignored unless DTSEN = 1.
 2012 Microchip Technology Inc.
Preliminary
DS41639A-page 317