NXP Semiconductors MPC5566, Reference Manual

Page: 101 / 1268

Signal Description
MPC5566 Microcontroller Reference Manual, Rev. 2
2-20 Freescale Semiconductor
2.3.1.6 Reset Configuration Input / GPIO
RSTCFG_GPIO[210]
The RSTCFG input is used to enable the BOOTCFG[0:1] and PLLCFG[0:1] pins during reset. If RSTCFG
is negated during reset, the BOOTCFG and PLLCFG pins are not sampled at the negation of RSTOUT. In
that case, the default values for BOOTCFG and PLLCFG are used. If RSTCFG is asserted during reset,
the values on the BOOTCFG and PLLCFG pins are sampled and configure the boot and FMPLL modes.
2.3.1.7 Reset Configuration / External Interrupt Request / GPIO
BOOTCFG[0:1]_IRQ[2:3]_GPIO[211:212]
BOOTCFG[0:1]_IRQ[2:3]_GPIO[211:212] signals are sampled on the negation of the RSTOUT pin, only
if RSTCFG is asserted at that time. The values are used by the Boot Assist Module (BAM) program to
determine the boot configuration of the device. The alternate functions are the external interrupt request
inputs (IRQs).
2.3.1.8 Weak Pull Configuration / GPIO
WKPCFG_GPIO[213]
WKPCFG_GPIO[213] determines whether specified eTPU and eMIOS pins are connected to a weak
pullup or weak pulldown during and immediately after reset.
2.3.2 External Bus Interface (EBI) Signals
2.3.2.1 External Chip Select / External Address / GPIO
CS[0]_ADDR[8]_GPIO[0]
CS[0]_ADDR[8]_GPIO[0] is an external bus interface (EBI) chip select output signals. ADDR[8] is the
alternate signal function and is an external bus address function.
2.3.2.2 External Chip Select / External Address / GPIO
CS[1:3]_ADDR[9:11]_GPIO[1:3]
CS[1:3]_ADDR[9:11]_GPIO[1:3] are the external bus interface (EBI) chip select output signals. The
alternate functions are the ADDR[9:11] and is an external bus address function.
2.3.2.3 External Address / GPIO
ADDR[8:11]_GPIO[4:7]
ADDR[8:11]_GPIO[4:7] are the External Bus Interface (EBI) address signals.
2.3.2.4 External Address / GPIO
ADDR[12:29]_GPIO[8:25]
ADDR[12:29]_GPIO[8:25] are External Bus Interface (EBI) address signals.