MCZ33991EG Freescale, MCZ33991EG Datasheet - Page 15

• Manufacturer Part Number: MCZ33991EG
• Manufacturer: Freescale

Specifications of MCZ33991EG

• Operating Current: 6mA
• Operating Temperature Classification: Automotive
• Package Type: SOIC W
• Operating Supply Voltage (min): 4.5V
• Operating Supply Voltage (typ): 5V
• Operating Supply Voltage (max): 5.5V
• Lead Free Status / RoHS Status: Compliant

Table 7. Maximum Velocity Register (VELR)
Table 9. Gauge 1 Position Register (POS1R)
• 1 = Nominal f=1MHz (for 8us calibration pulse)
disables the clock calibration.
• 0 = Disable
• 1 = Enable
• 0 = T
• 1 = 0.66 x T
output driver of Gauge 1.
• 0 = Disable
• 1 = Enable
output driver of Gauge 0.
• 0 = Disable
valid VELR commands
velocity determined in the V7: V0 field will apply to Gauge 1.
• 0 = Velocity does not apply to Gauge 1
• 1 = Velocity applies to Gauge 1
velocity specified in the V7: V0 field will apply to Gauge 0.
• 0 = Velocity does not apply to Gauge 0
• 1 = Velocity applies to Gauge 0
velocity position from the acceleration table. This velocity will
remain the maximum of the intended gauge until changed by
command.
Table 8. Gauge 0 Position Register (POS0R)
commands.
Analog Integrated Circuit Device Data
Freescale Semiconductor
Write
Write
Write
PE3—Clock Calibration Enable—This bit enables or
PE2—Oscillator Adjustment
PE1— Gauge 1 Enable—This bit enables or disables the
PE0 —Gauge 0 Enable—This bit enables or disables the
These bits are write-only.
V12—V10 These bits must be transmitted as logic 0 for
V9—Gauge 1 Velocity—Specifies whether the maximum
V8 — Gauge 0 Velocity—Specifies whether the maximum
V7—V0 Maximum Velocity—Specifies the maximum
These bits are write-only.
P0 12—This bit must be transmitted as logic[0] for valid
P0 11: P00—Desired pointer position of Gauge 0.
OSC
D12
D12
D12
0
0
0
OSC
P011
P011
D11
D11
D11
0
P010
P010
D10
D10
D10
0
D9
V9
P09
P09
D9
D9
D8
V8
P08
P08
D8
D8
Address: 001
Address: 010
Address: 011
D7
V7
P07
P07
D7
D7
• 1 = Enable
MAXIMUM VELOCITY REGISTER (VELR)
used to set a maximum velocity for each gauge. See Table 4.
representative of the table position value. The table value
becomes the maximum velocity until it is changed to another
value. If a maximum value is chosen greater than the
maximum velocity in the acceleration table, the maximum
table value will become the maximum velocity. If the motor is
turning at a value greater than the new maximum, the motor
will ignore the new value until the speed falls equal to, or
below it. Velocity for each motor can be changed
simultaneously, or independently, by writing D8 and/or D9 to
a logic [1]. Bits D10: D12 must be at logic [0] for valid VELR
commands.
position 255 (11111111).
GAUGE 0/1 POSITION REGISTER (POS0R, POS1R)
• SI Addresses 010—Gauge 0 Position Register receives
• SI Address 011—Gauge 1 Position Register receives
• Register bits D11: D0 receives writing when
bit must be at logic [0] for valid POS0R and POS1R
commands.
position 4095 (111111111111). For a stepper motor requiring
12 microsteps per degree of pointer movement, the
maximum pointer sweep is 341.25°.
D6
V6
P06
P06
D6
D6
SI Address 001—Gauge Maximum Velocity Register is
Bits D7: D0 contain a position value from 1–255
Velocities can range from position 1 (00000001) to
writing when communicating the desired pointer positions.
writing when communicating the desired pointer positions.
communicating the desired pointer positions.
Commanded positions can range from 0 to 4095. The D12
Pointer positions can range from 0 (000000000000) to
D5
V5
P05
P05
D5
D5
D4
V4
P04
P04
D4
D4
TIMING DESCRIPTIONS AND DIAGRAMS
COMMUNICATION MEMORY MAPS
D3
V3
P03
P03
D3
D3
D2
V2
P02
P02
D2
D2
D1
P01
P01
V1
D1
D1
P00
P00
D0
V0
D0
D0
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