GS6150 Datasheet, PDF (35/64 Pages) Gennum Corporation – Automatic or Manual Rate Selection

Table 4-7: GSPI Timing Parameters (Continued)
Parameter
Equivalent
Symbol
SCLK
Cycles
Min
Typ
Max
(at 27MHz)
Inter-command delay time
t_cmd
4
120.0
—
—
Inter-command delay time
(after GSPI configuration write)
t_{cmd_GSPI_}
conf¹
5
162.0
—
—
SDO after SCLK falling edge
t₆
—
—
7.5
CS high after final SCLK falling
edge
t₇
0.0
—
—
Input data hold time
t₈
1.0
—
—
CS high time
t₉
57.0
—
—
SDIN to SDOUT combinational
delay
—
—
5.0
Max. chips daisy chained at
max SCLK frequency
When host clocks in SDOUT
—
—
1
Max. frequency for 32
daisy-chained devices
data on rising edge of SCLK
—
—
2.1
Max. chips daisy-chained at
max. SCLK frequency
When host clocks in SDOUT
—
—
3
Max. frequency for 32
daisy-chained devices
data on falling edge of SCLK
—
—
2.2
Note:
1. t_{cmd_GSPI_conf} inter-command delay must be used whenever modifying HOST_CONFIG register at address 0x00
Units
ns
ns
ns
ns
ns
ns
ns
GS6150
chips
MHz
GS6150
chips
MHz
GS6150
Final Data Sheet
PDS-060127
Rev.2
March 2015
www.semtech.com
35 of 64
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