Cypress S6J3200 Series, Manual

Page: 419 / 1355

CHAPTER 18:Sound Generator
418 S6J3200 Series Hardware Manual Document Number: 002-04852 Rev. *G
No.
Setting of SGDER
Transfer
Size #2
*1
Transfer Byte Position of SGDMAR
TCRE IDRE PCRE1 PCRE0
SGTCR
[7:0]
SGIDR
[7:0]
SGPCR
[15:8]
SGPCR
[7:0]
14 1 0 1 1 4
SGDMAR
[31:24]
-
SGDMAR
[23:16]
SGDMAR
[15:8]
15 0 1 1 1 4
-
SGDMAR
[31:24]
SGDMAR
[23:16]
SGDMAR
[15:8]
16 1 1 1 1 4
SGDMAR
[31:24]
SGDMAR
[23:16]
SGDMAR
[15:8]
SGDMAR
[7:0]
*1: The transfer size which is calculated by the setting of SGDER.TCRE, SGDER.IDRE, SGDER.PCRE1,
and SGDER.PCRE0.
-
: Do not care.
3.4.4.
DMA Transfer Image
This section shows an example of DMA transfer image, under the setting of DMA Transfer Update Enable
Register (SGDER):
[SGDER.ARE1, SGDER.ARE0, SGDER.FRE, SGDER.NRE] ="1001"
[SGDER.TCRE, SGDER.IDRE, SGDER.PCRE1, SGDER.PCRE0] ="0100"
Condition:
The number of times of DMA transfer : 2 times
DMA transfer size : 2 bytes
Transfer byte position of the DMA Transfer Intermediate Register (SGDMAR):
The first SGDMAR[31:24] ← The amplitude data (upper byte) / SGAR[15:8]
SGDMAR[23:16] ← The tone output number / SGNR[7:0]
SGDMAR[15:0] ← Do not care
The second SGDMAR[31:24]
←
The increment and decrement data / SGIDR[7:0]
SGDMAR[23:0]
←
Do not care