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33903 Datasheet(PDF) 77 Page - Freescale Semiconductor, Inc

Part # 33903
Description  SBC Gen2 with CAN High Speed and LIN Interface
PDF  104 Pages
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Manufacturer  FREESCALE [Freescale Semiconductor, Inc]
Direct Link  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

33903 Datasheet(HTML) 77 Page - Freescale Semiconductor, Inc

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Analog Integrated Circuit Device Data
Freescale Semiconductor
77
33903/4/5
SERIAL PERIPHERAL INTERFACE
DETAIL OF CONTROL BITS AND REGISTER MAPPING
The Tables below describes MISO bits 7-0, used to
decode the device’s current mode.
Table 29. MISO bits 7-3
Device current mode, any of the above command
b7, b6, b5, b4, b3
MODE
0 0000
INIT
0 0001
FLASH
0 0010
Normal Request
0 0011
Normal Mode
The Table below describes the SAFE and DEBUG bit
decoding.
Table 30. SAFE and DEBUG status
SAFE and DEBUG bits
b1
description
0
SAFE pin OFF, not activated
1
SAFE pin ON, driver activated.
b0
description
0
Debug Mode OFF
1
Debug Mode Active
Table 31. Regulator Register
MOSI First Byte [15-8]
[b_15 b_14] 01_111 [P/N]
MOSI Second Byte, bits 7-0
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
01 01_ 111 P
VAUX[1]
VAUX[0]
-
5V-can[1]
5V-can[0]
VDD bal en
VDD bal auto
VDD OFF en
Default state
0
0
N/A
0
0
N/A
N/A
N/A
Condition for default
POR
POR
Bits
Description
b7 b6
VAUX[1], VAUX[0] - Vauxilary regulator control
00
Regulator OFF
01
Regulator ON. Under-voltage (UV) and Over-current (OC) monitoring flags not reported. VAUX is disabled when UV or OC
detected after 1.0 ms blanking time.
10
Regulator ON. Under-voltage (UV) and over-current (OC) monitoring flags active. VAUX is disabled when UV or OC detected
after 1.0 ms blanking time.
11
Regulator ON. Under-voltage (UV) and over-current (OC) monitoring flags active. VAUX is disabled when UV or OC detected
after 25
μs blanking time.
b4 b3
5 V-can[1], 5 V-can[0] - 5V-CAN regulator control
00
Regulator OFF
01
Regulator ON. Thermal protection active. Under-voltage (UV) and over-current (OC) monitoring flags not reported. 1.0 ms
blanking time for UV and OC detection.
10
Regulator ON. Thermal protection active. Under-voltage (UV) and over-current (OC) monitoring flags active. 1.0 ms blanking
time for UV and OC detection.
11
Regulator ON. Thermal protection active. Under-voltage (UV) and over-current (OC) monitoring flags active. 5 V-CAN disable
when UV or OC detected after 25
μs blanking time.
b2
VDD bal en - Control bit to Enable the VDD external ballast transistor
0
External VDD ballast disable
1
External VDD ballast Enable
b1
VDD bal auto - Control bit to automatically Enable the VDD external ballast transistor, if VDD is > typically 60 mA
0
Disable the automatic activation of the external ballast
1
Enable the automatic activation of the external ballast, if VDD > typically 60 mA
b0
VDD OFF en - Control bit to allow transition into LP VDD OFF Mode (to prevent VDD turn OFF)
0
Disable Usage of LP VDD OFF Mode
1
Enable Usage of LP VDD OFF Mode
REGULATOR, CAN, I/O, INT AND LIN REGISTERS



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