MC68HC11PH8 Datasheet, PDF (132/264 Pages) Motorola, Inc – High-density Complementary Metal Oxide Semiconductor (HCMOS) Microcomputer Unit

EXT4X — 4XCLK or EXTAL clock output select (refer to Section 3)
1 (set) – EXTALi clock output on the 4XOUT pin.
0 (clear) – 4XCLK clock output on the 4XOUT pin.
DISE — E clock output disable (refer to Section 3)
1 (set) – No E clock output.
0 (clear) – E clock is output normally.
7.6
SPI2
In addition to the subsystem described in the above paragraphs (SPI1), the MC68HC11PH8 has
another SPI module (SPI2). This system is identical to SPI1, with the following exceptions:
– SPI2 shares I/O with four port G pins:
7
Pin
Alternate
function
PG2 MISO2
PG3 MOSI2
PG4 SCK2
PG5 SS2
– SPI1 functions and data are handled by a register block at $0028–$002A
along with the system configuration options register 2 at address $0038. The
corresponding registers for SPI2 are at addresses $004C–$004E along with
the SPI2 control options register at address $004F. The SPI2 registers are
described in the following sections.
MOTOROLA
7-10
SERIAL PERIPHERAL INTERFACE
TPG
MC68HC11PH8