參數(shù)資料
型號(hào): LPC2919
廠商: NXP Semiconductors N.V.
元件分類: 32位微控制器
英文描述: ARM9 microcontroller with CAN and LIN
中文描述: 具有CAN和LIN的ARM9微控制器
文件頁數(shù): 19/68頁
文件大?。?/td> 384K
代理商: LPC2919
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LPC2917_19_1
NXP B.V. 2007. All rights reserved.
Preliminary data sheet
Rev. 1.01 — 15 November 2007
19 of 68
NXP Semiconductors
LPC2917/19
ARM9 microcontroller with CAN and LIN
Table 11.
CS[2:0]
000
001
010
011
100
101
110
111
8.2.3
External static-memory controller pin description
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.
Table 12
shows the external memory controller pins.
Table 12.
Symbol
EXTBUS CSx
EXTBUS BLSy
EXTBUS WE_N
EXTBUS OE_N
EXTBUS A[23:0] out
EXTBUS D[31:0] in/out
8.2.4
External static-memory controller clock description
The External Static-Memory Controller is clocked by CLK_SYS_SMC, see
Section 7.2.2
.
8.2.5
External memory timing diagrams
A timing diagram for reading from external memory is shown in
Figure 4
. The relationship
between the wait-state settings is indicated with arrows.
External static-memory controller banks
Bank
bank 0
bank 1
bank 2
bank 3
bank 4
bank 5
bank 6
bank 7
External memory controller pins
Direction
out
out
out
out
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
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