MCBSTM32EXL Keil, MCBSTM32EXL Datasheet - Page 442

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

Specifications of MCBSTM32EXL

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

Flexible static memory controller (FSMC)
19.6.1
Caution:
Note:
442/995
Table 113. Programmable NAND/PC Card access parameters
External memory interface signals
The following tables list the signals that are typically used to interface NAND Flash and PC
Card.
When using a PC Card or a CompactFlash in I/O mode, the NIOS16 input pin must remain
at ground level during the whole operation, otherwise the FSMC may not operate properly.
This means that the NIOS16 input pin must not be connected to the card, but directly to
ground (only 16-bit accesses are allowed).
Prefix “N”. specifies the associated signal as active low.
8-bit NAND Flash
Table 114. 8-bit NAND Flash
There is no theoretical capacity limitation as the FSMC can manage as many address
cycles as needed.
Memory setup
time
Memory wait
Memory hold
Memory
databus high-Z
A[17]
A[16]
D[7:0]
NCE[x]
NOE(= NRE)
NWE
NWAIT/INT[3:2]
t
Parameter
FSMC signal name
Number of clock cycles (HCLK)
to set up the address before the
command assertion
Minimum duration (HCLK clock
cycles) of the command assertion
Number of clock cycles (HCLK)
to hold the address (and the data
in case of a write access) after
the command de-assertion
Number of clock cycles (HCLK)
during which the databus is kept
in high-Z state after the start of a
write access
I/O
I/O
Function
O
O
O
O
O
I
Doc ID 13902 Rev 9
NAND Flash address latch enable (ALE) signal
NAND Flash command latch enable (CLE) signal
8-bit multiplexed, bidirectional address/data bus
Chip select, x = 2, 3
Output enable (memory signal name: read enable, NRE)
Write enable
NAND Flash ready/busy input signal to the FSMC
Access mode
Read/Write
Read/Write
Read/Write
Write
Function
AHB clock cycle
(HCLK)
AHB clock cycle
(HCLK)
AHB clock cycle
(HCLK)
AHB clock cycle
(HCLK)
Unit
1
2
1
0
Min. Max.
RM0008
256
256
255
255