SAP5SD-B-G1-R datasheet(40/67 Pages) RENESAS

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SAP51 / SAP5S Datasheet

January 28, 2016

5.11. LED Outputs

5.11.1. Slave Mode

The SAP5 provides two LED pins for enhanced status indication. LED1 and LED2 both comprise NMOS open-

drain output drivers. In addition, LED2 contains a high-voltage, high-impedance input stage for purposes of the

SAP5 production test.

Note: In order to comply with the signaling schemes defined in the AS-Interface Complete Specification, a red

LED must be connected to LED2 and a green LED must be connected to LED1.

The following status indication is supported:

Table 5.16 LED Status Indication

Priority/Status

LED1 / LED 2

Notes

1. Power off

No power supply available.

2. External reset

DSTRBn pin driven low for more than 90ms.

3. Periphery fault

Alternating

Periphery fault signal generated at PFAULT input pin as described in

section 5.10.

4. No data exchange

(Address = 0)

Slave is waiting for address assignment. Data Port communication is not

possible.

5. No data exchange

The SAP5 was reset by the Communication Watchdog or by RES or BR01

master calls; thus the Data_Exchange_Disable flag is still set, prohibiting

Data Port communication. The SAP5 is waiting for a Write_Parameter

request. This status is not signaled if the Communication Watchdog is not

activated (see section 5.17).

6. Normal operation

Data communication is established.

The flashing frequency of any flashing status indication is approximately 2Hz.

In the case of a simultaneous occurrence of several states, the status with the highest priority is signaled.

gree

red

green

red

green

red

green

red

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