MAX3421EEHJ(2006) Ver la hoja de datos (PDF) - Maxim Integrated
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MAX3421EEHJ Datasheet PDF : 29 Pages
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USB Peripheral/Host Controller
with SPI Interface
Table 1. MAX3421E Register Map in Peripheral Mode (HOST = 0) (Notes 1a, 1b) (Continued)
Note 1b: In peripheral mode, the MAX3421E performs identically to the MAX3420E with the following enhancements:
1) R16 adds the PULSEWID0 and PULSEWID1 bits to control the INT pulse width in edge interrupt mode
(see Figure 12.) These bits default to the MAX3420E setting of 10.6µs.
2) R21 adds four more GPIO bits.
3) R22 and R23 add general-purpose input pins to the interrupt system. R24 controls the edge polarity.
4) R27 controls the peripheral/host mode and the SEPIRQ bit.
5) When [GPXB:GPXA] = [1:0] and the bit SEPIRQ = 1 (R27 bit 4), the GPX output replaces the BUSACT
signal with a second IRQ pin dedicated to the GPIN pin interrupts.
Table 2. MAX3421E Register Map in Host Mode (HOST = 1) (Note 2)
REG NAME
b7
b6
b5
b4
b3
b2
b1
b0
acc
R0 —
0
0
0
0
0
0
0
0
—
R1 RCVFIFO
b7
b6
b5
b4
b3
b2
b1
b0
RS C
R2 SNDFIFO
b7
b6
b5
b4
b3
b2
b1
b0
RS C
R3 —
0
0
0
0
0
0
0
0
—
R4 SUDFIFO
b7
b6
b5
b4
b3
b2
b1
b0
RS C
R5 —
0
0
0
0
0
0
0
0
—
R6 RCVBC
0
BC 6
BC 5
BC 4
BC 3
BC 2
BC 1
BC 0
RS C
R7 SNDBC
0
BC 6
BC 5
BC 4
BC 3
BC 2
BC 1
R8 —
0
0
0
0
0
0
0
BC 0
RS C
0
—
R9 —
0
0
0
0
0
0
0
0
—
R10 —
R11 —
R12 —
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
—
0
—
0
—
R13 USBIRQ
0
VBUSIRQ NOVBUSIRQ
0
0
0
0
OSCOKIRQ RC
R14 USBIEN
0
VBUSIE NOVBUSIE
0
0
0
0
OSCOKIE RSC
R15 USBCTL
0
0
CHIPRES PWRDOWN
0
0
0
0
RS C
R16 CPUCTL PULSEWID1 PULSEWID0
0
0
0
0
0
IE
RS C
R17 PINCTL
EP3INAK EP2INAK EP0INAK FDUPSPI INTLEVEL
POSINT
GPXB
GPXA
RS C
R18 REVISION
0
0
0
0
0
0
0
1
R
R19 —
0
0
0
0
0
0
0
0
—
R20 IOPINS1
GPIN3
GPIN2
GPIN1
GPIN0
GPOUT3
GPOUT2
GPOUT1
GPOUT0
RS C
R21 IOPINS2
GPIN7
GPIN6
GPIN5
GPIN4
GPOUT7
GPOUT6
GPOUT5
GPOUT4
RS C
R22 GPINIRQ GPINIRQ7 GPINIRQ6 GPINIRQ5 GPINIRQ4 GPINIRQ3 GPINIRQ2 GPINIRQ1
GPINIRQ0
RC
R23 GPINIEN
GPINIEN7 GPINIEN6 GPINIEN5 GPINIEN4 GPINIEN3
GPINIEN2
GPINIEN1
GPINIEN0 RSC
R24 GPINPOL GPINPOL7 GPINPOL6 GPINPOL5 GPINPOL4 GPINPOL3 GPINPOL2 GPINPOL1
GPINPOL0 RSC
R25 HIRQ
HXFRDNIRQ FRAMEIRQ CONNIRQ SUSDNIRQ SNDBAVIRQ RCVDAVIRQ RSMREQIRQ BUSEVENTIRQ RC
R26 HIEN
HXFRDNIE FRAMEIE CONNIE SUSDNIE SNDBAVIE RCVDAVIE RSMREQIE BUSEVENTIE RSC
R27 MODE
DPPULLDN DMPULLDN DELAYISO SEPIRQ SOFKAENAB HUBPRE
SPEED
HOST = 1 RSC
R28 PERADDR
0
b6
b5
b4
b3
b2
b1
b0
RS C
R29 HCTL
SNDTOG1 SNDTOG0 RCVTOG1 RCVTOG0 SIGRSM BUSSAMPLE FRMRST
BU S RS T
LS
R30 HXFR
HS
IS O
OUTNIN SETUP
EP3
EP2
EP1
EP0
LS
R31 HRSL
JSTATUS KSTATUS SNDTOGRD RCVTOGRD HRSLT3
H RS LT2
H RS LT1
H RS LT0
R
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