Datasheet

Chapter 2 Port Integration Module (S12XEPIMV1)
MC9S12XE-Family Reference Manual Rev. 1.25
136 Freescale Semiconductor
2.3.44 Module Routing Register (MODRR)
This register configures the re-routing of CAN0, CAN4, SPI0, SPI1, and SPI2 on alternative ports.
Address 0x0257 Access: User read/write
(1)
1. Read: Anytime.
Write: Anytime.
76543210
R0
MODRR6 MODRR5 MODRR4 MODRR3 MODRR2 MODRR1 MODRR0
W
Reset 00000000
= Unimplemented or Reserved
Figure 2-42. Module Routing Register (MODRR)
Table 2-40. Module Routing Summary
Module MODRR Related Pins
6543210
RXCAN TXCAN
CAN0 x xxxx00 PM0 PM1
xxxxx01 PM2 PM3
xxxxx10 PM4 PM5
xxxxx11 PJ6 PJ7
CAN4 x x x 0 0 x x PJ6 PJ7
x x x 0 1 x x PM4 PM5
x x x 1 0 x x PM6 PM7
x x x 1 1 x x Reserved
MISO MOSI SCK
SS
SPI0 x x 0 xxxx PS4 PS5 PS6 PS7
xx1xxxx PM2 PM4 PM5 PM3
SPI1 x 0 xxxxx PP0 PP1 PP2 PP3
x1xxxxx PH0 PH1 PH2 PH3
SPI2 0 xxxxxx PP4 PP5 PP7 PP6
1xxxxxx PH4 PH5 PH6 PH7