MCBSTM32EXL Keil, MCBSTM32EXL Datasheet - Page 411

• Manufacturer Part Number: MCBSTM32EXL
• Description: BOARD EVALUATION FOR STM32F103ZE
• Manufacturer: Keil

Specifications of MCBSTM32EXL

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

RM0008
19.4
Configuration registers
The FSMC can be configured using a register set. See
description of the NOR Flash/PSRAM controller registers. See
description of the NAND Flash/PC Card registers.
External device address mapping
From the FSMC point of view, the external memory is divided into 4 fixed-size banks of 256
Mbytes each (Refer to
●
●
●
For each bank the type of memory to be used is user-defined in the Configuration register.
Figure 161. FSMC memory banks
a)
b)
Bank 1 used to address up to 4 NOR Flash or PSRAM memory devices. This bank is
split into 4 NOR/PSRAM regions with 4 dedicated Chip Select.
Banks 2 and 3 used to address NAND Flash devices (1 device per bank)
Bank 4 used to address a PC Card device
This situation occurs when a byte access is requested to a 16-bit wide Flash
memory. Clearly, the device cannot be accessed in byte mode (only 16-bit words
can be read from/written to the Flash memory) therefore:
Write transactions are not allowed
Read transactions are allowed (the controller reads the entire 16-bit memory word
and uses the needed byte only).
6FF F FFF Fh
7FF F FFF Fh
8FF F FFF Fh
9FF F FFF Fh
6000 0000h
7000 0000h
8000 0000h
9000 0000h
Address
Figure
161):
Doc ID 13902 Rev 9
4 × 64 MB
4 × 64 MB
4 × 64 MB
4 × 64 MB
Banks
Bank 1
Bank 2
Bank 3
Bank 4
Flexible static memory controller (FSMC)
Supported memory type
NAND Flash
Section
NOR / PSRAM
PC Card
Section
19.5.6, for a detailed
19.6.7, for a detailed
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