C541U Datasheet, PDF (24/63 Pages) Siemens Semiconductor Group – 8 BIT CMOS MICROCONTROLLER

C541U
Table 4
Contents of the USB Device and Endpoint Registers (Addr. C1H to C7H)
Addr Register Reset Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Value
EPSEL = 1XXX.XXXXB Device Registers
C1H DCR
000X. SPEED DA
0000B
SWR
C2H DPWDR 00H DRVIE XVREG 0
C3H DIER
00H
SE0IE DAIE DDIE
C4H DIRR 00H SE0I DAI
DDI
C5H reserved
C6H FNRL XXH FNR7 FNR6 FNR5
C7H FNRH 0000. 0
0
0
0XXXB
EPSEL = 0XXX.X000B Endpoint 0 Registers
C1H EPBC0 00H STALL0 0
0
C2H EPBS0 20H UBF0 CBF0 DIR0
C3H EPIE0 00H AIE0 NAIE0 RLEIE0
C4H EPIR0 11H ACK0 NACK0 RLE0
C5H EPBA0 00H PAGE0 0
0
C6H EPLEN0 0XXX. 0
XXXXB
L06
L05
C7H reserved
EPSEL = 0XXX.X001B Endpoint 1 Registers
C1H EPBC1 00H STALL1 0
0
C2H EPBS1 20H UBF1 CBF1 DIR1
C3H EPIE1 00H AIE1 NAIE1 RLEIE1
C4H EPIR1 10H ACK1 NACK1 RLE1
C5H EPBA1 00H PAGE1 0
0
C6H EPLEN1 0XXX. 0
XXXXB
L16
L15
C7H reserved
SUSP
0
SBIE
SBI
FNR4
0
GEPIE0
ESP0
–
–
0
L04
GEPIE1
ESP1
–
–
0
L14
DINIT RSM UCLK PCLK
0
SEIE
SEI
0
STIE
STI
TPWD
SUIE
SUI
RPWD
SOFIE
SOFI
FNR3
0
FNR2 FNR1
FNR10 FNR9
FNR0
FNR8
SOFDE0 INCE0 0
DBM0
SETRD0 SETWR0 CLREP0 DONE0
DNRIE0 NODIE0 EODIE0 SODIE0
DNR0 NOD0 EOD0 SOD0
A06
A05
A04
A03
L03
L02
L01
L00
SOFDE1 INCE1 0
DBM1
SETRD1 SETWR1 CLREP1 DONE1
DNRIE1 NODIE1 EODIE1 SODIE1
DNR1 NOD1 EOD1 SOD1
A16
A15
A14
A13
L13
L12
L11
L10
Semiconductor Group
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