Datasheet

SAM3X / SAM3A [DATASHEET]
Atmel-11057C-ATARM-SAM3X-SAM3A-Datasheet_23-Mar-15
492
25.18.18 SMC Pulse Register
Name: SMC_PULSEx [x=0..7]
Address: 0x400E0074 [0], 0x400E0088 [1], 0x400E009C [2], 0x400E00B0 [3], 0x400E00C4 [4], 0x400E00D8 [5],
0x400E00EC [6], 0x400E0100 [7]
Access: Write-only
Reset: 0x00000000
• NWE_PULSE: NWE Pulse Length
The NWE signal pulse length is defined as:
NWE pulse length = (256 * NWE_PULSE[6]+NWE_PULSE[5:0]) clock cycles.
The NWE pulse must be at least one clock cycle.
• NCS_WR_PULSE: NCS Pulse Length in WRITE Access
In Write access, The NCS signal pulse length is defined as:
NCS pulse length = (256 * NCS_WR_PULSE[6] + NCS_WR_PULSE[5:0]) clock cycles.
the NCS pulse must be at least one clock cycle.
• NRD_PULSE: NRD Pulse Length
The NRD signal pulse length is defined as:
NRD pulse length = (256 * NRD_PULSE[6] + NRD_PULSE[5:0]) clock cycles.
The NRD pulse width must be as least 1 clock cycle.
• NCS_RD_PULSE: NCS Pulse Length in READ Access
In READ mode, The NCS signal pulse length is defined as:
NCS pulse length = (256 * NCS_RD_PULSE[6] + NCS_RD_PULSE[5:0]) clock cycles.
31 30 29 28 27 26 25 24
– – NCS_RD_PULSE
23 22 21 20 19 18 17 16
– – NRD_PULSE
15 14 13 12 11 10 9 8
– – NCS_WR_PULSE
76543210
– – NWE_PULSE