TCC720 Datasheet, PDF (96/143 Pages) List of Unclassifed Manufacturers – 32-bit RISC Microprocessor For Digital Media Player

TCC720
32-bit RISC Microprocessor for Digital Media Player
Dec. 16. 2002
GSIO
Preliminary Spec 0.51
GSIOn Control Register (GSCR0, GSCR1, GSCR2, GSCR3)
31 30 29 28 27 26 25 24 23 22 21 20
EN MS
WORD
WS
DIV
15 14 13 12 11 10 9 8 7 6 5 4
0 DELAY FP
FRM1
0x800007x8
19 18 17 16
CP CM
3210
FRM2
EN [31]
0
1
MS [30]
0
1
GSIO Enable
GSIO Disabled
GSIO Enabled
First Bit Select
LSB first
MSB first
WORD [29:26]
n
GSIO word size
GSIO data has (n+1) bit unit, n = 0 ~ 15
WS [25]
0
1
DIV [24:18]
n
Word Size Select
GSIO word size is determined by WORD of GSCRn register
GSIO word size is determined by BW of GSDO register
GSIO base clock speed control
GSIO base clock has 1/(2n+2) of PCLK frequency, n = 0 ~ 127
CP [17]
0
1
CM [16]
0
1
GSIO clock polarity
SDO changes at SCK falling
SDO changes at SCK rising
Last clock mask
No mask. GSIO clock is generated for every SDO.
GSIO clock is masked at the last SDO period.
DELAY [14:13]
n
Initial delay for serial transmission
GSIO transmission starts after n base clock has generated.
10 - 3