bpck6_wr_data_byte
bpck6_wr_data_byte(pi, val);
bpck6_wr_data_byte(pi, (u8)len);
bpck6_wr_data_byte(pi, (u8)(len >> 8));
bpck6_wr_data_byte(pi, 0);
bpck6_wr_data_byte(pi, (u8)len);
bpck6_wr_data_byte(pi, (u8)(len >> 8));
bpck6_wr_data_byte(pi, 0);
bpck6_wr_data_byte(pi, RAMSIZE_128K);
bpck6_wr_data_byte(pi, (u8)((regdata & 0x03) << 6));