Information

Signal Descriptions
MPC8308 PowerQUICC II Pro Processor Reference Manual, Rev. 1
Freescale Semiconductor 2-7
GPIO[14] General-purpos
e I/O signal
GPIO 1 I/O 21-1/21-2 TSEC_TMR_ALARM[2] 16-2/16-7
GPIO[11:14] General-purpos
e I/O signal
GPIO 4 I/O 21-1/21-2 TSEC2_TXD[3:0] 16-2/16-7
GPIO[15] General-purpos
e I/O signal
GPIO 1 I/O 21-1/21-2 TSEC2_TX_EN 16-2/16-7
GPIO[15] General-purpos
e I/O signal
GPIO 1 I/O 21-1/21-2 GTM1_TGATE4 5-53/5-56
TSEC_TMR_GCLK 1588 clock-out eTSEC 1 O 16-2/16-7 — —
TSEC_TMR_CLK 1588 clock-in eTSEC 1 I 16-2/16-7 GPIO[8] 21-1/21-2
TSEC_TMR_PP[1:2] 1588 timer
pulse-out 1, 2
eTSEC 2 O 16-2/16-7 — —
TSEC_TMR_PP[3] 1588 timer
pulse-out 3
eTSEC 1 O 16-2/16-7 GPIO[13] 21-1/21-2
TSEC_TMR_
ALARM[1]
1588 timer
alarm-out 1
eTSEC 1 O 16-2/16-7 — —
TSEC_TMR_
ALARM[2]
1588 timer
alarm-out 2
eTSEC 1 O 16-2/16-7 GPIO[14] 21-1/21-2
TSEC_TMR_TRIG[1:2
]
1588 trigger-in
1, 2
eTSEC 2 I 16-2/16-7 GPIO[11:12] 21-1/21-2
USBDR_PWR_FAULT USB VBus
power fault
USB 1 I 13-2/13-3 — —
USBDR_CLK Clocking signal
for ULPI PHY
interface
USB 1 I 13-2/13-3 — —
USBDR_DIR Direction of
data bus
USB 1 I 13-2/13-3 — —
USBDR_NXT Nest data USB 1 I 13-2/13-3 — —
USBDR_TXDRXD[0:7] Data bit 0–7 USB 8 I/O 13-2/13-3 — —
USBDR_PCTL[0:1] Port control 0–1 USB 2 O 13-2/13-3 — —
USBDR_STP End of a
transfer on the
bus
USB 1 O 13-2/13-3 — —
TSEC1_MDC Ethernet
management
data clock
Ethernet
Management
1 O 16-2/16-7 — —
TSEC1_MDIO Ethernet
management
data in/out
Ethernet
Management
1 I/O 16-2/16-7 — —
Table 2-1. MPC8308 Signal Reference by Functional Block (continued)
Name Description
Functional
Block
No. of
Signals
I/O
Table/
Page
Alternate
Function(s)
Table/
Page