str912fa STMicroelectronics, str912fa Datasheet - Page 32

• Manufacturer Part Number: str912fa
• Description: Arm966e-s? 16/32-bit Flash Mcu With Ethernet, Usb, Can, Ac Motor Control, 4 Timers, Adc, Rtc, Dma
• Manufacturer: STMicroelectronics

Functional overview
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Figure 4.
Figure 5.
By defining the bus parameters such as burst length, burst type, read and write timings in
the EMI control registers, the EMI bus is able to interface to standard burst memory
devices. The burst timing specification and waveform will be provided in the next data
sheet release
EMI 16-bit multiplexed connection example
EMI 8-bit multiplexed connection example
STR91xx
EMI_BWR_WRLn
ST R91xx
EMI_WRHn
EMI_BWR_WRLn
EMI_AD15
EMI_AD14
EMI_AD13
EMI_AD12
EMI_AD11
EMI_AD10
EMI_CS3n
EMI_CS2n
EMI_CS1n
EMI_CS0n
EMI_AD9
EMI_AD8
EMI_AD7
EMI_AD6
EMI_AD5
EMI_AD4
EMI_AD3
EMI_AD2
EMI_AD1
EMI_AD0
EMI_RDn
EMI_ALE
EMI_A22
EMI_A21
EMI_A20
EMI_A19
EMI_A18
EMI_A17
EMI_A16
EMI_A23
EMI_CS3n
EMI_CS2n
EMI_CS1n
EMI_CS0n
EMI_AD7
EMI_AD6
EMI_AD5
EMI_AD4
EMI_AD3
EMI_AD2
EMI_AD1
EMI_AD0
EMI_RDn
EMI_ALE
P7.7
P7.6
P7.5
P7.4
P7.3
P7.2
P7.1
P7.0
P9.7
P9.6
P9.5
P9.4
P9.3
P9.2
P9.1
P9.0
P8.7
P8.6
P8.5
P8.4
P8.3
P8.2
P8.1
P8.0
P8.7
P8.6
P8.5
P8.4
P8.3
P8.2
P8.1
P8.0
CHIP_SELECT
WRITE_HIGH_BYTE
WRITE_LOW_BYTE
READ
ADDR_LATCH
A23
A22
A21
A20
A19
A18
A17
A16
AD15
AD14
AD13
AD12
AD11
AD10
AD9
AD8
AD7
AD6
AD5
AD4
AD3
AD2
AD1
AD0
CHIP_SELECT
WRIT E
READ
ADDR_LAT CH
AD 7
AD 6
AD 5
AD 4
AD 3
AD 2
AD 1
AD 0
DEVICE
16-BIT
DEVICE
8-BIT
STR91xFA