MIPI M-PHY Specification Version 4.1 is a low pin count, power efficient, inter-chip serial interface with high bandwidth capabilities. A M-PHY configuration (LINK) consists of a minimum of two unidirectional lanes along with associated lane management logic. Each of the M-PHY lanes consists of a lane module (M-TX) that communicates to a corresponding module (M-RX) on the other chip via a serial interconnect that consists of two differential lines. The differential lines can carry both High-Speed (HS) and Low-Speed (LS) signals.
Arasan’s M-PHYs is of Type 1, which apply to UFS, LLI, and CSI-3 protocols. The Multi-gear M-PHY 4.1 consists of analog transceivers, high-speed PLL, data recovery units as well as state-machine control — all in a single GDSII. The interface to the link protocol-specific controller (host or device) is compliant with the M-PHY RMMI specification, which allows seamless integration of the two IPs, namely the controller and the PHY, into the chip design.
Arasan follows a rigorous practice of co-verifying the controllers and their corresponding PHY’s to ensure that they operate together as intended. These, together with Arasan’s software stacks, are mapped onto Arasan’s Hardware Validation Platforms, which are used for early compatibility and interoperability testing with the corresponding host/device platforms from Arasan and a number of MIPI contributor members. This minimizes end-to-end compatibility risk for customers.
DIAGRAM
FEATURES
Compliant to MIPI Alliance Standard for M-PHY specification Version 4.1
Supports high speed data transfer G1A/B, G2A/B, G3A/B and G4A/B with data rates of up to 11660.8 Mbps
Supports M-PHY Type-I system
Support for reference clock frequencies of 19.2MHz/26MHz/38.4MHz/52MHz
Support for Clock and Data Recovery Options
Supports low speed transfer G0-G7 with a bit rate of up to 576 Mbps
PWM signalling for Low speed [LS] data
Supports error detection mechanism for sequence errors and contentions
Data lanes support transfer of data in high speed mode
Supports LS burst, HS burst, STALL, SLEEP, HIBERN8 states
Supports squelch detection
Has clock divider unit to generate clock for parallel data reception and transmission from and to the PIF (RMMI)
Activates and disconnects high speed terminators for reception and transmission
Supports standard PHY transceiver compliant to MIPI Specification
Supports standard PIF (RMMI) interface compliant to MIPI Specification.
On-chip clock generation configurable for either transmitter or a receiver
Testability for Tx, Rx and PLL
DELIVERABLES
User Guide and Integration Guides
GDS-II
CDL Netlist for LVS
LVS reports
DRC and Antenna reports
LIB files
LEF
Scan-inserted Netlist for DFT
Verification Environment with behavioral models
BENEFITS
Compliant with M-PHY and the relevant protocols standards
Seamless interface to Arasan’s host and device controllers for those standards
