Cypress enCoRe V CY7C643 Series, Technical Reference Manual

Page: 154 / 257

enCoRe™ V CY7C643xx, enCoRe™ V LV CY7C604xx TRM, Document No. 001-32519 Rev *H 154
Full-Speed USB
20.3.11 PMAx_WA Register
The PSoC Memory Arbiter Write Address Register
(PMAx_WA) is used to set the beginning SRAM address for
the PMA channel. A PMAx_WA register address uses the
same physical register as the PMAx_RA register address.
Therefore, when the read address is changed, the write
address is also changed and the PMAx_RA and PMAx_WA
registers always return the same value when read. Bits 7 to 0: Address[7:0]. The value returned when this
register is read depends on whether the PMA channel is
being used by the USB SIE or by the M8C. In the USB case,
this register always returns the beginning SRAM address for
the PMA channel. In the M8C case, this register always
returns the next SRAM address that is used by the PMA
channel, if a byte is written to the channel's data register
(PMAx_DR) by the M8C.
For additional information, refer to the PMAx_WA register on
page 216 .
Address Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Access
1,34h PMA0_WA Write Address[7:0] RW : 00
1,35h PMA1_WA Write Address[7:0] RW : 00
1,36h PMA2_WA Write Address[7:0] RW : 00
1,37h PMA3_WA Write Address[7:0] RW : 00
1,38h PMA4_WA Write Address[7:0] RW : 00
1,39h PMA5_WA Write Address[7:0] RW : 00
1,3Ah PMA6_WA Write Address[7:0] RW : 00
1,3Bh PMA7_WA Write Address[7:0] RW : 00
1,44h PMA8_WA Write Address[7:0] RW : 00
1,45h PMA9_WA Write Address[7:0] RW : 00
1,46h PMA10_WA Write Address[7:0] RW : 00
1,47h PMA11_WA Write Address[7:0] RW : 00
1,48h PMA12_WA Write Address[7:0] RW : 00
1,49h PMA13_WA Write Address[7:0] RW : 00
1,4Ah PMA14_WA Write Address[7:0] RW : 00
1,4Bh PMA15_WA Write Address[7:0] RW : 00