Motorola MPC860 PowerQUICC User Manual page 337

Name Reset
HRESET Low
SRESET Low
XTAL Analog
Driving
EXTAL Hi-Z
XFC Analog
Driving
2
CLKOUT Note
EXTCLK Hi-Z
TEXP High
ALE_A Low
CE1_A High
CE2_A High
WAIT_A Hi-Z
WAIT_B Hi-Z
IP_A[0Ð1] Hi-Z
IP_A2 Hi-Z
IOIS16_A
IP_A[3Ð7] Hi-Z
MOTOROLA
Table 13-1. Signal Descriptions (Continued)
Number Type
N4 Open-drain Hard ResetÑAsserting this open drain signal puts the
P2 Open-drain Soft ResetÑAsserting this open drain line puts the MPC860 in
P1 Analog
Output
N1 Analog Input
(3.3V only)
T2 Analog Input External Filter CapacitanceÑThis input is the connection pin
W3 Output
N2 Input (3.3V
only)
N3 Output
K2 Output
B3 Output
A3 Output
R3 Input
R4 Input
T5, T4 Input
U3 Input
W2, U4, U5, Input
T6, T3
Chapter 13. External Signals
Description
MPC860 in hard reset state.
soft reset state.
This output is one of the connections to an external crystal for
the internal oscillator circuitry.
This line is one of the connections to an external crystal for the
internal oscillator circuitry.
for an external capacitor Þlter for the PLL circuitry.
Clock OutÑThis output is the clock system frequency.
External ClockÑThis input is the external input clock from an
external source.
Timer ExpiredÑThis output reßects the status of
PLPRCR[TEXPS].
Address Latch Enable AÑThis output is asserted when
MPC860 initiates an access to a region under the control of
the PCMCIA interface to socket A.
Card Enable 1 Slot AÑThis output enables even byte transfers
when accesses to PCMCIA Slot A are handled under the
control of the PCMCIA interface.
Card Enable 2 Slot AÑThis output enables odd byte transfers
when accesses to PCMCIA Slot A are handled under the
control of the PCMCIA interface.
Wait Slot AÑThis input, if asserted low, causes a delay in the
completion of a transaction on the PCMCIA controlled Slot A.
Wait Slot BÑThis input, if asserted low, causes a delay in the
completion of a transaction on the PCMCIA controlled Slot B.
Input Port A 0Ð1ÑThe MPC860 monitors these inputs that are
reßected in the PIPR and PSCR of the PCMCIA interface.
Input Port A 2ÑThe MPC860 monitors these inputs; its value
and changes are reported in the PIPR and PSCR of the
PCMCIA interface.
I/O Device A is 16 Bits Ports SizeÑThe MPC860 monitors this
input when a transaction under the control of the PCMCIA
interface is initiated to an I/O region in socket A of the PCMCIA
space.
Input Port A 3-7ÑThe MPC860 monitors these inputs; their
values and changes are reported in the PIPR and PSCR of the
PCMCIA interface.
Part IV. Hardware Interface
13-11