Message Data (Md0 To Md15); Hcan Monitor Register (Hcanmon); Figure 15.5 Message Data Configuration - Hitachi H8S/2628 Hardware Manual

15.3.19 Message Data (MD0 to MD15)

The message data register sets consist of eight 8-bit registers for one mailbox. The HCAN has 16
sets of these registers. Because message data registers are in RAM, their initial values after power-
on are undefined. Be sure to initialize them by writing 0 or 1. Figure 15.5 shows the register
names for each mailbox.
Mail box 0 MD0[1]
Mail box 1 MD1[1]
Mail box 2 MD2[1]
Mail box 3 MD3[1]
Mail box 15 MD15[1]

15.3.20 HCAN Monitor Register (HCANMON)

HCANMON is an 8-bit register that enables/disables an HCAN receive interrupt, controls
transmission stop of the HTxD pin, and reflects the states of the HCAN pins.
Rev. 1.0, 09/02, page 382 of 568
MD0[2] MD0[3] MD0[4]
MD1[2] MD1[3] MD1[4]
MD2[2] MD2[3] MD2[4]
MD3[2] MD3[3] MD3[4]
MD15[2] MD15[3] MD15[4]

Figure 15.5 Message Data Configuration

MD0[5] MD0[6] MD0[7]
MD1[5] MD1[6] MD1[7]
MD2[5] MD2[6] MD2[7]
MD3[5] MD3[6] MD3[7]
MD15[5] MD15[6] MD15[7]
MD0[8]
MD1[8]
MD2[8]
MD3[8]
MD15[8]