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Hss transmit address register [0xc07c] [r/w, Hss transmit counter register [0xc07e] [r/w, Hpi registers – Cypress EZ-OTG CY7C67200 User Manual

Page 48

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CY7C67200

Document #: 38-08014 Rev. *G

Page 48 of 78

HSS Transmit Address Register [0xC07C] [R/W]

Figure 54. HSS Transmit Address Register

Register Description

The HSS Transmit Address register is used as the base pointer address for the next HSS block transmit transfer.

Address (Bits [15:0])

The Address field sets the base pointer address for the next HSS block transmit transfer.

HSS Transmit Counter Register

[0xC07E] [R/W]

Figure 55. HSS Transmit Counter Register

Register Description

The HSS Transmit Counter register designates the block byte
length for the next HSS transmit transfer. This register must be
loaded with the word count minus one to start the block
transmit transfer. As each byte is transmitted this register
value is decremented. When read, this register indicates the
remaining length of the transfer.

Counter (Bits [9:0])

The Counter field value is equal to the word count minus one
giving a maximum value of 0x03FF (1023) or 2048 bytes.
When the transfer is complete this register returns 0x03FF
until reloaded.

Reserved

All reserved bits must be written as ‘0’.

HPI Registers

There are five registers dedicated to HPI operation. In
addition, there is an HPI status port which can be address over
HPI. Each of these registers is covered in this section and are
summarized in

Table 32

.

Bit #

15

14

13

12

11

10

9

8

Field

Address...

Read/Write

R/W

R/W

R/W

R/W

R/W

R/W

R/W

R/W

Default

0

0

0

0

0

0

0

0

Bit #

7

6

5

4

3

2

1

0

Field

...Address

Read/Write

R/W

R/W

R/W

R/W

R/W

R/W

R/W

R/W

Default

0

0

0

0

0

0

0

0

Bit #

15

14

13

12

11

10

9

8

Field

Reserved

Counter...

Read/Write

-

-

-

-

-

-

R/W

R/W

Default

0

0

0

0

0

0

0

0

Bit #

7

6

5

4

3

2

1

0

Field

...Counter

Read/Write

R/W

R/W

R/W

R/W

R/W

R/W

R/W

R/W

Default

0

0

0

0

0

0

0

0

Table 32.HPI Registers

Register Name

Address

R/W

HPI Breakpoint Register

0x0140

R

Interrupt Routing Register

0x0142

R

SIE1msg Register

0x0144

W

SIE2msg Register

0x0148

W

HPI Mailbox Register

0xC0C6

R/W

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