ISD91200 Series Technical Reference Manual
Release Date: Sep 16, 2019
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Revision 2.4
6.3
Flash Memory Controller Block Diagram
The flash memory controller consist of AHB slave interface, ISP control logic, writer interface and flash
macro interface timing control logic. The block diagram of flash memory controller is shown as
following:
AHB Slave
Interface
ISP
Controller
ICP
Writer
Interface
0x0000_0000
0x0001_FFFF
Flash
Operation
Control
Power On
Initialization
Data Out
Control
CONFIG &
MAP
ISP Program
Memory (LDROM)
CBS=0
AHB Bus
64
KB
96
KB
128
KB
0x0000_FFFF
0x0001_7FFF
Application Memory
(APROM+DATA)
CBS=1
0x0000_0000
0x0000_0FFF
Cortex-M0
AHB Lite
interface
Debug
Access
Port
Serial wire debug
interface
Figure 6-1 Flash Memory Control Block Diagram