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92HD99B Datasheet, PDF (217/225 Pages) Integrated Device Technology – SINGLE CHIP PC AUDIO SYSTEM
92HD99
SINGLE CHIP PC AUDIO SYSTEM, CODEC+SPEAKER AMPLIFIER+CAPLESS HP+LDO
7.29.1.24. EQRAM Read Data (0x30–0x35), EQRAM Write Data (0x36–3B) Registers
These two 48-bit registers (addressed as 12 8-bit registers) are 48-bit data holding registers used
when doing indirect writes/reads to the EQRAM.
Prior to WC revision, these registers reset by POR/DAFG/ULR. WC revision, reset by POR only
Writing to NID22h verb 77F will cause NOT generate a reset to EQRAMREAD registers, it will how-
ever work for EQRAMWRITE registers.]]
Register Address
Bit
Label
EQRAM_READ[47:40]
verb FA0/7A0
7:0
EQRD[47:40]
Type Default
Description
RW 0x00
48-bit data register, contains the contents of the most recent
EQRAM address read from the RAM. The address read will
have been specified by the EQRAM Address fields.
Register Address
Bit
Label
EQRAM_READ[39:32]
verb FA1/7A1
7:0
EQRD[39:32]
Type Default
Description
RW 0x00
48-bit data register, contains the contents of the most recent
EQRAM address read from the RAM. The address read will
have been specified by the EQRAM Address fields.
Register Address
Bit
Label
EQRAM_READ[31:24]
verb FA2/7A2
7:0
EQRD[31:24]
Type Default
Description
RW 0x00
48-bit data register, contains the contents of the most recent
EQRAM address read from the RAM. The address read will
have been specified by the EQRAM Address fields.
Register Address
Bit
Label
EQRAM_READ[23:16]
verb FA3/7A3
7:0
EQRD[23:16]
Type Default
Description
RW 0x00
48-bit data register, contains the contents of the most recent
EQRAM address read from the RAM. The address read will
have been specified by the EQRAM Address fields.
Register Address
EQRAM_READ[15:8]
verb FA4/7A4
Bit
Label
7:0 EQRD[15:8]
Type Default
Description
RW 0x00
48-bit data register, contains the contents of the most recent
EQRAM address read from the RAM. The address read will
have been specified by the EQRAM Address fields.
Register Address
EQRAM_READ[7:0]
verb FA5/7A5
Bit
Label
7:0 EQRD[7:0]
Type Default
Description
RW 0x00
48-bit data register, contains the contents of the most recent
EQRAM address read from the RAM. The address read will
have been specified by the EQRAM Address fields.
Register Address
Bit
Label
EQRAM_WRITE[47:40]
verb FA6/7A6
7:0
EQWD[47:40]
Type Default
Description
RW 0x00
48-bit data register, contains the values to be written to the
EQRAM. The address written will have be specified by the
EQRAM Address fields.
Register Address
Bit
Label
EQRAM_WRITE[39:32]
verb FA7/7A7
7:0
EQWD[39:32]
Type Default
Description
RW 0x00
48-bit data register, contains the values to be written to the
EQRAM. The address written will have be specified by the
EQRAM Address fields.
IDT CONFIDENTIAL
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92HD99