Preliminary
S3C2451X RISC MICROPROCESSOR
I/O PORTS
11-3
Table 11-1. S3C2451X Port Configuration (Sheet 2) (Continued)
Port B
Selectable Pin Functions
GPB10 Input/output
nXDREQ0
XDREQ0
I2SSDO_2
GPB9 Input/output nXDACK0
XDACK0
I2SSDO_1
GPB8 Input/output nXDREQ1 XDREQ1 I2CSCL
GPB7 Input/output nXDACK1
XDACK1
I2CSDA
GPB6 Input/output
nXBREQ
XBREQ
RTCK
GPB5 Input/output
nXBACK
XBACK
–
GPB4 Input/output
TCLK
–
–
GPB3 Input/output
TOUT3
–
–
GPB2 Input/output
TOUT2
–
–
GPB1 Input/output
TOUT1
–
–
GPB0 Input/output
TOUT0
–
–
Port C
Selectable Pin Functions
GPC15 Input/output
RGB_VD7/SYS_VD7
–
–
GPC14 Input/output
RGB_VD6/SYS_VD6
–
–
GPC13 Input/output
RGB_VD5/SYS_VD5
–
–
GPC12 Input/output
RGB_VD4/SYS_VD4
–
–
GPC11 Input/output
RGB_VD3/SYS_VD3
–
–
GPC10 Input/output
RGB_VD2/SYS_VD2
–
–
GPC9 Input/output
RGB_VD1/SYS_VD1 –
–
GPC8 Input/output
RGB_VD0/SYS_VD0 –
–
GPC7 Input/output
–
–
–
GPC6 Input/output
–
–
–
GPC5 Input/output
–
–
–
GPC4 Input/output
RGB_VDEN/SYS_RS –
–
GPC3 Input/output
RGB_VSYNC/SYS_CS
1
– –
GPC2 Input/output
RGB_HSYNC/SYS_CS
0
– –
GPC1 Input/output
RGB_VCLK/SYS_WR
–
–
GPC0 Input/output
RGB_LEND/SYS_OE –
–