- NXP ARM Microcontroller Product Data Sheet

DR
AFT
DR
AFT
DRAFT
DR
D
RAFT
DRAFT
DRA
F
T DRAF
D
RAFT DRAFT DRAFT DRAFT DRAFT D
DRAFT
D
RAFT DRA
F
T DRAFT DRAFT DRAFT DRA
LPC2917_19_1 © NXP B.V. 2007. All rights reserved.
Preliminary data sheet Rev. 1.01 — 15 November 2007 17 of 68
NXP Semiconductors
LPC2917/19
ARM9 microcontroller with CAN and LIN
[1] Availability of sector 15 to sector 18 depends on device type, see Section 4 “Ordering information”.
The index sector is a special sector in which the JTAG access protection and sector
security are located. The address space becomes visible by setting the FS_ISS bit and
overlaps the regular flash sector’s address space.
Note that the index sector cannot be erased, and that access to it has to be performed via
code outside the flash.
8.1.6 Flash bridge wait-states
To eliminate the delay associated with synchronizing flash-read data, a predefined
number of wait-states must be programmed. These depend on flash-memory response
time and system clock period. The minimum wait-states value can be calculated with the
following formulas:
Synchronous reading:
Asynchronous reading:
3 8 0000 6000h
4 8 0000 8000h
5 8 0000 A000h
6 8 0000 C000h
7 8 0000 E000h
8 64 0001 0000h
9 64 0002 0000h
10 64 0003 0000h
11 64 0004 0000h
12 64 0005 0000h
13 64 0006 0000h
14 64 0007 0000h
15
[1]
64 0008 0000h
16
[1]
64 0009 0000h
17
[1]
64 000A 0000h
18
[1]
64 000B 0000h
Table 9. Flash sector overview
…continued
Sector number Sector size (kB) Sector base address
WST
t
acc clk()
t
t
tclk sys()
------------------
> 1–
WST
t
acc addr()
t
tclk sys()
----------------------
> 1–