A kind of SOC system and retransmission control socket circuit

Abstract

The invention discloses an SoC system and a retransmission control socket circuit. The system comprises a bus controller, an AHB bus, an Slave end and a retransmission control socket circuit, wherein the retransmission control socket circuit is used for forwarding signals between the AHB bus and the Slave end, and when the condition that a request is read from or written into the AHB bus is detected, recording a state corresponding to the signal used for controlling a transmission attribute on the current AHB bus; and when only a retransmission request exists in the Slave end, changing the state of the signal used for controlling the transmission attribute to be a recording state and then sending the signal to the Slave end, and respectively changing the states of the transmission response signal and the transmission completion signal feed back by the Slave end to be a normal response state and an incomplete transmission state and then sending the signals to the AHB bus. Therefore, the phenomenon of data loss during a reading-writing process due to the fact that the AHB bus does not support a retransmission function is solved.

Description

technical field [0001] The invention relates to the technical field of integrated circuit design, in particular to a SoC system and a retransmission control socket circuit. Background technique [0002] Current SoC designs mostly use such as figure 1 The AHB bus architecture shown can quickly and efficiently integrate peripheral slaves from different manufacturers into the system. Although AHB bus and peripheral Slave-side suppliers follow the basic requirements of the AHB bus protocol when designing these modules, each manufacturer will selectively support the optional functions of the AHB bus protocol according to the characteristics of their own Slave-side, which may cause AHB bus There is a communication mismatch problem with the Slave side. For example, the AHB bus does not support the retransmission function, but the slave side supports the retransmission function. When the slave side initiates a retransmission request, the bus does not respond because it does not su...

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present invention provides a SoC system and a retransmission control socket circuit to solve the problem of mismatch between the retransmission function of the AHB bus and the Slave end in the prior art

Images