MCBSTM32EXL Keil, MCBSTM32EXL Datasheet - Page 452
MCBSTM32EXL
Manufacturer Part Number
MCBSTM32EXL
Description
BOARD EVALUATION FOR STM32F103ZE
Manufacturer
Keil
Specifications of MCBSTM32EXL
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Flexible static memory controller (FSMC)
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Bits 31:24 IOHIZx: I/O x databus HiZ time
Bits 23:16 IOHOLDx: I/O x hold time
Bits 15:8 IOWAITx: I/O x wait time
IOHIZx
Bits 7:0 IOSETx: I/O x setup time
Bits 7:0 ATTSETx: Attribute memory x setup time
I/O space timing register 4 (FSMC_PIO4)
Address offset: 0xA000 0000 + 0xB0
Reset value: 0xFCFCFCFC
The FSMC_PIO4 read/write registers contain the timing information used to gain access to
the I/O space of the 16-bit PC Card/CompactFlash.
Defines the number of HCLK clock cycles during which the databus is kept in HiZ after the
start of a PC Card write access to I/O space on socket x. Only valid for write transaction:
0000 0000: 0 HCLK cycle
1111 1111: 255 HCLK cycles (default value after reset)
Defines the number of HCLK clock cycles to hold address (and data for write access) after
the command deassertion (NWE, NOE), for PC Card read or write access to I/O space on
socket x:
0000 0000: reserved
0000 0001: 1 HCLK cycle
1111 1111: 255 HCLK cycles (default value after reset)
Defines the minimum number of HCLK (+1) clock cycles to assert the command (SMNWE,
SMNOE), for PC Card read or write access to I/O space on socket x. The duration for
command assertion is extended if the wait signal (NWAIT) is active (low) at the end of the
programmed value of HCLK:
0000 0000: reserved, do not use this value
0000 0001: 2 HCLK cycles (+ wait cycle introduced by deassertion of NWAIT)
1111 1111: 256 HCLK cycles (+ wait cycle introduced by the Card deasserting NWAIT)
(default value after reset)
Defines the number of HCLK (+1) clock cycles to set up the address before the command
assertion (NWE, NOE), for PC Card read or write access to I/O space on socket x:
0000 0000: 1 HCLK cycle
1111 1111: 256 HCLK cycles (default value after reset)
Defines the number of HCLK (+1) clock cycles to set up address before the command
assertion (NWE, NOE), for PC CARD/NAND Flash read or write access to attribute memory
space on socket x:
0000 0000: 1 HCLK cycle
1111 1111: 256 HCLK cycles (default value after reset)
IOHOLDx
Doc ID 13902 Rev 9
IOWAITx
9
8
7
6
5
IOSETx
4
3
RM0008
2
1
0
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