isp1181 NXP Semiconductors, isp1181 Datasheet - Page 62

• Manufacturer Part Number: isp1181
• Description: Isp1181 Full-speed Universal Serial Bus Interface Device
• Manufacturer: NXP Semiconductors

Philips Semiconductors
9397 750 08938
Product data
Fig 33. Typical interface circuit for bus configuration mode 2 (shared ports: 8-bit PIO, 8-bit or 16-bit DMA).
CONTROLLER
DMA
8051
BUS_REQ
BUS_GNT
MCU_WR
MCU_RD
DREQ
PSEN
DACK
P2.3
P2.0
P2.1
EOT
CS1
CS2
AD0
AD1
AD2
AD3
AD4
AD5
AD6
AD7
ALE
IRQ
WR
WR
RD
RD
D7
D6
D5
D4
D3
D2
D1
D0
Rev. 04 — 30 October 2001
CS
RD
WR
AD
D1
D2
D3
D4
D5
D6
D7
D8
D9
D10
D11
D12
D13
D14
D15
A0
ALE
CS
RD
WR
INT
SUSPEND
WAKEUP
DREQ
DACK
EOT
BUS_CONF1
BUS_CONF0
D15
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
ISP1181
DMA PORT
16 BIT
V reg(3.3)
RESET
XTAL1
XTAL2
V BUS
V CC
© Koninklijke Philips Electronics N.V. 2001. All rights reserved.
D+
GL
D
Full-speed USB interface
MGS771
22
22
330
V CC
18 pF
0.1
ISP1181
F
LINK LED
6 MHz
18 pF
connector
upstream
0.1
USB
F
1
2
3
4
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