FUNCTIONAL DESCRIPTION
FUNCTIONAL INTERNAL BLOCK DESCRIPTION
Table 7. Serial Input Port Definition for DC Motor/DC Motor Mode (9)
Reset
Value
Name
Bit
Description
1
1
V2_Enable
Enable bit to turn on and off the V2 regulator and the motor drivers and place the
34920 in the minimum power consumption state.
2
3
4
5
6
7
X
X
X
X
X
0
Not Used
Not Used
Not Used
Not Used
Not Used
Not used in this mode.
Not used in this mode.
Not used in this mode.
Not used in this mode.
Not used in this mode.
DR2_DIR_DCM
Controls the direction of the current flow through the DC motor. A logic [1] level
causes conventional current flow from DR2A1 (source)/DR2A2 (source) to DR2B1
(sink)/DR2B2 (sink).
8
X
X
X
X
X
0
Not Used
Not used in this mode.
Not used in this mode.
Not used in this mode.
Not used in this mode.
Not used in this mode.
9
Not Used
10
11
12
13
Not Used
Not Used
Not Used
DR1_DIR_DCM
Controls the direction of the current flow through the DC motor. A logic [1] level
causes conventional current flow from DR1A1 (source)/DR1A2 (source) to DR1B1
(sink)/DR1B2 (sink).
Notes
9. DR1_MODE and DR2_MODE pins = logic [0] for DC motor drive for both drivers.
34920
Analog Integrated Circuit Device Data
Freescale Semiconductor
15
FREESCALE [ Freescale ]
