3 multiplier operand b, 4 multiplier accumulato, 3 multiplier operand b register (mb) -6 – Maxim Integrated MAXQ Family User Manual
Page 126: 4 multiplier accumulator 2 register (mc2) -6, Maxq family user’s guide, 3 multiplier operand b register (mb), 4 multiplier accumulator 2 register (mc2)
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MAXQ Family User’s Guide
12.5.3 Multiplier Operand B Register (MB)
Bits 15 to 0: Multiplier Operand B Register (MB.[15:0]). This operand B register is used by the application code to load 16-bit val-
ues for multiplier operations.
12.5.4 Multiplier Accumulator 2 Register (MC2)
Bits 15 to 0: Multiplier Accumulator 2 Register (MC2.[15:0]). The MC2 register represents the two most significant bytes of the accu-
mulator register. The 48-bit accumulator is formed by MC2, MC1 and MC0. For a signed operation, the most significant bit of this reg-
ister is the sign bit. The MC2 register width is dependent upon the hardware multiplier accumulator width of the given MAXQ device.
For a MAXQ device having only a 32-bit accumulator, the MC2 register will not be present.
Bit #
15
14
13
12
11
10
9
8
Name
MC2.15
MC2.14
MC2.13
MC2.12
MC2.11
MC2.10
MC2.9
MC2.8
Reset
0
0
0
0
0
0
0
0
Access
rw
rw
rw
rw
rw
rw
rw
rw
Bit #
7
6
5
4
3
2
1
0
Name
MC2.7
MC2.6
MC2.5
MC2.4
MC2.3
MC2.2
MC2.1
MC2.0
Reset
0
0
0
0
0
0
0
0
Access
rw
rw
rw
rw
rw
rw
rw
rw
r = read, w = write
Bit #
15
14
13
12
11
10
9
8
Name
MB.15
MB.14
MB.13
MB.12
MB.11
MB.10
MB.9
MB.8
Reset
0
0
0
0
0
0
0
0
Access
rw
rw
rw
rw
rw
rw
rw
rw
Bit #
7
6
5
4
3
2
1
0
Name
MB.7
MB.6
MB.5
MB.4
MB.3
MB.2
MB.1
MB.0
Reset
0
0
0
0
0
0
0
0
Access
rw
rw
rw
rw
rw
rw
rw
rw
r = read, w = write
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