405EZ Datasheet, PDF (37/54 Pages) Applied Micro Circuits Corporation – PowerPC 405EZ Embedded Processor

PPC405EZ – PowerPC 405EZ Embedded Processor
Revision 1.27 - August 22, 2007
Preliminary Data Sheet
Table 6. Signal Functional Description (Sheet 3 of 6)
Notes:
1. Receiver input has hysteresis.
2. Must pull up. See “Pull-Up and Pull-Down Resistors” on page 34 for recommended termination values.
3. Must pull down. See “Pull-Up and Pull-Down Resistors” on page 34 for recommended termination values.
4. If not used, must pull up.
5. If not used, must pull down.
6. Strapping input during reset; pull up or pull down as required.
Signal Name
Description
I/O
Type
Analog to Digital (ADC) Interface
ADC_In0:7
Analog inputs.
Analog inputs to the ADC should be referenced to ADC_AGND and
should not exceed the value of VRef.
ADC_InTrig
Input trigger.
ADC_VRef
Analog input reference voltage.
Allowable voltage range is 2V–ADC_AV_DD.
Digital to Analog (DAC) Interface
I
Analog Wide-
Wire receiver
I
3.3V LVTTL
I
Analog Wide-
Wire receiver
DAC_CRef
Reference voltage for the gate of the DAC current sources. This
voltage should be connected to the DAC_AV_DD voltage with a 1nF
filter capacitor at the signal pin.
I
Analog Wide-
Wire driver
DAC_IOutP
Analog positive output current.
O
DAC_IPTrig
Input trigger.
I
DAC_IRRef
Analog input reference current.
I
DAC_VRef
Analog band gap voltage reference input.
Allowable voltage range is 1.15V–1.26V, with a typical value of
I
1.174 V.
DAC_GRef
Reference voltage for the gate of the cascode device in the DAC
current sources. This voltage should be connected to the DAC_AV_DD I
voltage with a 1nF filter capacitor at the signal pin.
Controller Area Network Interface
Analog Wide-
Wire driver
3.3V LVTTL
Analog Wide-
Wire driver
Analog Wide-
Wire driver
Analog Wide-
Wire driver
CAN0_Rx
CAN0_Tx
CAN0_TxE
CAN1_Rx
CAN1_Tx
CAN1_TxE
Receive input.
Transmit output.
Transmit enable.
Receive input.
Transmit output.
Transmit enable.
I
3.3V LVTTL
Rcvr w/pull-up
O
3.3V LVTTL
O
3.3V LVTTL
I
3.3V LVTTL
O
3.3V LVTTL
O
3.3V LVTTL
Notes
5
5
AMCC Proprietary
37