Cypress EX-USB FX3, Programmer'S Manual

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132 FX3 Programmers Manual, Doc. # 001-64707 Rev. *C
FX3 P-Port Register Access
10.2 Externally Visible PP Registers
The following table lists key registers of the P-port used in initialization and data transfer across the
P-port.
10.2.1 PP_ID Register
P-Port Device ID Register. This must be provided by boot ROM.
Table 10-1. PP Register
Description
Processor Port Register Map in GPIF space
Offset Width Name Description
0x00 16 PP_ID P-Port Device ID Register
0x04 16 PP_INIT P-Port reset and power control
0x08 16 PP_CONFIG P-Port Configuration Register
0x1C 16 PP_INTR_MASK P-Port Interrupt Mask Register
0x20 16 PP_DRQR5_MASK P-Port DRQ/R5 Mask Register
0x24 32 PP_SOCK_MASK P-Port Socket Mask Register
0x28 16 PP_ERROR P-Port Error Indicator Register
0x2C 16 PP_DMA_XFER P-Port DMA Transfer Register
0x30 16 PP_DMA_SIZE P-Port DMA Transfer Size Register
0x34 64 PP_WR_MAILBOX P-Port Write (Ingress) Mailbox Registers
0x48 16 PP_EVENT P-Port Event Register
0x4C 64 PP_RD_MAILBOX P-Port Read (Egress) Mailbox Registers
0x54 32 PP_SOCK_STAT P-Port Socket Status Register
Bits Name HW SW Description
15:0 DEVICE_ID RW R Provides a device ID.