CS22250 Datasheet, PDF (11/32 Pages) Cirrus Logic – WIRELESS 10BT CONTROLLER

SMDQM[1:0]
SMCKE
SMA0
SMA1
SMA2
SMA3
SMA4
SMA5
SMA6
Output
Data mask bit 1:0. These signals function as byte enable lines masking
unwanted bytes on memory reads and write. Also used as
testmode(1:0) when NTEST pin is '0'.
Output
Clock enable. SMCKE is used to enable and disable clocking of internal
RAM logic.
Output
Address bit0. The address bus specifies either the row address or
column address. Also shared as boot-rom address bit0. This pin should
have a pull-down.
Output
Address bit1. Also shared as boot-rom address bit1. This pin should
have a pull-down.
Output
Address bit2. Also shared as boot-rom address bit2. This pin should
have a pull-down.
Output
Address bit3. Also shared as boot-rom address bit3. Also used during
reset to latch in the strap value for ossel; if set to a '1' implies optslot
mode.
Output
Address bit4. Also shared as boot-rom address bit4. Also used during
reset to latch in the strap value for romcfg. This pin should be pull down.
Output
Address bit5. Also shared as boot-rom address bit5. Also used during
reset to latch in the strap value for test_rst_enb; if set to a '0' implies
normal operation mode.
Output
Address bit6. Also shared as boot-rom address bit6. Also used during
reset to latch in the strap value for freq_sel(0). Freq_sel(2:0) is used to
select the multiplication factor for the internal PLL (000=1x and 111=8x).
CS22250 Wireless 10BT Controller
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DS551PP2 Rev. 3.0