LPC2420FBD208 NXP [NXP Semiconductors], LPC2420FBD208 Datasheet - Page 65

• Manufacturer Part Number: LPC2420FBD208
• Description: Flashless 16-bit/32-bit microcontroller; Ethernet, CAN, ISP/IAP, USB 2.0 device/host/OTG, external memory interface
• Manufacturer: NXP [NXP Semiconductors]

NXP Semiconductors
LPC2420_60_3
Preliminary data sheet
Fig 18. LPC2420/2460 USB OTG port configuration: USB port 1 host, USB port 2 host
Fig 19. Booting from two 8-bit memory chips
11.2 Suggested boot memory interface solutions
LPC24XX
A[a_b:1]
‘a_m’ and ‘a_b’ in the following figures refer to the highest order address line of the
memory chip and the highest order microcontroller’s address line used respectively.
CS1
OE
D[15:8]
USB_UP_LED1
USB_D+1
USB_D 1
USB_PWRD1
USB_OVRCR1
USB_PPWR1
USB_PPWR2
USB_OVRCR2
BLS1
USB_PWRD2
USB_UP_LED2
USB_D+2
USB_D 2
A[a_m:0]
IO[7:0]
33
33
33
33
WE
OE
CE
Rev. 03 — 20 November 2008
5 V
MEMORY
15 k
15 k
8-bit
ENA
ENB
IN
15 k
15 k
V
DD
LM3526-L
V
DD
D[7:0]
BLS0
FLAGA
OUTA
OUTB
FLAGB
Flashless 16-bit/32-bit microcontroller
A[a_m:0]
IO[7:0]
WE
CE
OE
V
V
SSCORE
SSCORE
V
V
V
V
DD
DD
LPC2420/2460
SSIO,
SSIO,
MEMORY
V
V
8-bit
002aad322
BUS
BUS
D+
D
D+
D
002aad596
USB-A
connector
USB-A
connector
© NXP B.V. 2008. All rights reserved.
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