lpc2917 NXP Semiconductors, lpc2917 Datasheet - Page 19

• Manufacturer Part Number: lpc2917
• Description: Arm9 Microcontroller With Can And Lin
• Manufacturer: NXP Semiconductors

NXP Semiconductors
LPC2917_19_1
Preliminary data sheet
8.2.3 External static-memory controller pin description
8.2.4 External static-memory controller clock description
8.2.5 External memory timing diagrams
Table 11.
The external static-memory controller module in the LPC2917/19 has the following pins,
which are combined with other functions on the port pins of the LPC2917/19.
shows the external memory controller pins.
Table 12.
The External Static-Memory Controller is clocked by CLK_SYS_SMC, see
A timing diagram for reading from external memory is shown in
between the wait-state settings is indicated with arrows.
CS[2:0]
000
001
010
011
100
101
110
111
Symbol
EXTBUS CSx
EXTBUS BLSy
EXTBUS WE_N
EXTBUS OE_N
EXTBUS A[23:0] out
EXTBUS D[31:0] in/out
External static-memory controller banks
External memory controller pins
Bank
bank 0
bank 1
bank 2
bank 3
bank 4
bank 5
bank 6
bank 7
out
out
Direction
out
out
Rev. 1.01 — 15 November 2007
Description
memory-bank x select, x runs from 0 to 7
byte-lane select input y, y runs from 0 to 3
write enable (active LOW)
output enable (active LOW)
address bus
data bus
ARM9 microcontroller with CAN and LIN
Figure
LPC2917/19
4. The relationship
© NXP B.V. 2007. All rights reserved.
Section
Table 12
7.2.2.
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